Lets remember some events from his career : His phenomenal short managing career with União de Leiria that gave him recognition . He left Leiria in January 2002 for Porto and continued his brilliant season. Later He won with Porto Europe league and Champions League . Especially knowing that UEFA Cup was pretty competitive during that time compare to this days and not even mentioning CL and all won with Porto and players who were average before he came .
He went to Chelsea that has not won domestic cup for 50 years that time . He had to change mentality of the team and made them champs domestically . Also he made them a force to recon with in Champions League. In my opinion Chelsea was unlucky not to get to the final of CL on many occasions . After he left Chelsea , his tactis and style stuck with Chelsea and the team made to 2008 CL final and finally won it in 2012 with Mourinho tactics that stuck with Chelsea . During 2010 campaign when Mourinho was facing Chelsea as coach of Inter he said that nothing has changed in Chelsea squad or tactics and maybe that explains why he defeated Chelsea in quarter final .

Later his career took him to Inter to win treble . Inter became European powerhouse but not for long due Mourinhos departure to Real Madrid . In Madrid Mourinho regrouped the team and build the squad that set records in the league , but only winning it once along with Copa Del rey and Spanish Super cup in 3 years period. Real Madrid significantly improved in Champions League reaching the semifinals 3 times in the row , but like at Chelsea he failed to bring CL cup . It is interesting to see that when he had fairly superior squad compare to Inter 2008-2010 and Porto 2002-2004 he could not win competition . However , still we can be impressed that he never went full season without title . We see early struggles at Chelsea and we quickly jump to conclusions that he is not what he used to be or he is not the manager to have during transition. Maybe we are right ?
Chelsea board wants attacking football but we all know that Mourinho won his trophies by playing opposite of that philosophy and usually fast counter attacking football was his favorite tactics . Is he the right man for Chelsea at this period ? Do we set expectation bar too high for Mourinho due to his constant quick success every where he has been ? Maybe he was just one lucky Manager and it is time to realize that Mourinho was never that special as we got to know him over the years ?
I like to know your opinion , i will disclose mine later .

Like him as a person. Feel he's good as a manager, but overrated.

He needs to be judged on his second season at Chelsea, He has always been mediocre at his first season and started winning tittles at his second one.

I consider him one of the greatest managers now a days and in the last decade.

Winning many trophies with one team is a big achievement but winning that many trophies with many different teams is twice as hard and twice the achievement.

Currently two points away from first in the league, in the Ro16 of the CL (and will most likely advance), and still has a shot with the FA Cup.

He's not declining.

He was absolutely amazing for Inter. I think something bad happened to him when he went to Real.. He hasn't been the same.

He just became less reckless, which is what made him so great in the first place.

Thank you all for your responses . I absolutely love Jose Mourinho , and hardly have any doubts about him, but sometimes you may question his abilities to change or transform football club in top side . @Tuanis , Not always he had instant success until he came to Madrid , if you mean mediocre in terms of titles won in first season than I guess agree . You said to judge in his second season , but what I fear the most if he fails to win this season any titles he will either leave club himself ( which he said during interview once , not sure if he was joking ) or Abramovich will sack him . Why i started this thread is because to see why some people think that Mourinho is destroying Chelsea and it is players and why he should leave . So far did not get a good argument but only praises about him .

To be fair, I have been a bit disappointed at his defensive minded tactics with Chelsea. At Real, they were scoring for fun so I thought that he would bring the same approach to Chelsea for his second term as well. Loaning out Lukaku was also something I didn't understand. Can't see how he is a worse option than the current strikers he plays. He will probably get a decent striker in January and then he could possibly turn this around.

Ever since Di Matteo was sacked, I am not sure anymore what Roman looks for in his manager. If its just results, then Mourinho is doing a good job. If he wants flair and attacking play, then I'll have to go with no.

I thought that it was quite often the case that Chelsea hasn't won a game convincingly this season. I just feel that Mourinho doesn't have the right type of players for his personal style. Yes, he has some fantastic players, but not quite yet the finished product.

But my opinion here is largely based on what tactics I observed from him at Madrid. Here's what stood out for me.

Striker - Has to be a prolific goalscorer who is a strong target man, and good finisher. Milito, Eto'o, Drogba, and Higuain were perfect for that role. Benzema was slightly different as he was used largely because he complimented Ronaldo's abilities. I though Lukaku would've been brilliant here, or, if he wanted to use the Benzema type of striker to lay off passes to the wingers to score, Torres would've been a good idea.

Wingers - fast and tricky, and capable of scoring themselves as well. Pandev, Eto'o, Ronaldo, di Maria are some great examples. Obviously, his tactics at Madrid were forced to slightly change (because he had Ronaldo himself on the team, and Ronaldo is a completely different brand of player than anyone in the world right now). But essentially, his wingers always have a similar style. Hazard and Schurrle fit in to this just fine.

AM - Extremely creative playmaker, who is calm and can retain possession. Sneijder, Lampard, Deco, and Ozil are the ones he favored. And I can see why. Mata seems to be the best option at Chelsea for him, but he intends to make Oscar improve into a player better than Mata, so it will take some time for us to see results.

DM pairing - one deep-lying playmaker, and one strong and physical defender. Khedira and Alonso, Essien and Lampard, Cambiasso and Zanetti... all worked in similar ways. I think that he doesn't have a proper DM on his team right now, and that's what's hindering a large part of their process. Van Ginkel comes to my mind as a great and promising DM, but I guess he's just not ready for the big stage yet.

Wing backs - fast and attacking-minded. Chivu, Maicon, Cole, Marcelo, and Coentrao are some nice examples. I think that Chelsea are fine on the right with Azpilicueta, but Cole seems to be declining, and I would suggest him to buy someone there soon.

CB's - big men who are capable of pushing a high line, and willing to do the dirty work for the team. Ramos, Pepe, Carvalho, Samuel, Lucio, Terry come to my mind instantly. Varane was another player he loved, but from my perspective, Varane is going to be a much better player than any of the others I listed above. I think Luiz is a very capable defender, and Cahill too, but it's the inconsistency of Luiz which frustrates me often.

So, in conclusion, I think that Mourinho needs to be given some time to open the checkbook and buy the players he needs.

This is a very interesting analysis:
<http://www.bbc.com/sport/0/football/25380991>

Every new manager needs a chance to build their own squad. Even with the budget available at Chelsea you still have to build squad chemistry. This cannot be bought! Give the man a chance. Like Vendetta said "two points away from the league," I'd gladly switch positions lol.

@FredTilson , Di Matteo was never a good manger . He simply let the old guard to play and do their thing . He deployed ultra defensive tactics and it payed off . In final he almost messed it up by allowing Kalou and Bertrand play on the wings for way too long . I would not even have started with Kalou . If you remember substitute Torres was the one who brought us that last minute corner . Also his biggest mistake was to go Juventus game without striker when we had Daniel Sturridge always ready to play . What really makes me mad how the fck nor Di Matteo nor Benitez never gave a chance to Sturridge to play especially after his match against United in Carling Cup where he did so well .

@Dynastian98
We have the players that Mourinho needs . They are either on loan or in the team . They just need more time to develop and grow , but Abramovic needs results so there is no time to develop them as they have to pick only best out of those young lads . Except few areas .

Striker - Lukaku on loan and Mourinho will need just one more striker who is world class .

Winger - We have one more winger on loan whom Mourinho will really like and his name is Lucas Piazon .

AM - Juan Mata is converted AM from Winger . If you watch matches he still has this tendency to rush and make diagonal cutting run . Plus in valencia he never was AM if I am not mistaken even after Silva left . Oscar was always CAM and calm on the ball , but sometimes too calm and too predictable with out creativity . Also I really like De Bruyne especially because of his direct style and ability to take shot from any range . De Bruyne is similar to Lampard so it really puzzles me why Mourinho does not play him .

DM - Van Ginkel is injured for the rest of the season . I always say if we only could get Pogba to be paired with Ramires . Also we have Nathan Ake who is defender but can play DM . Problem they are young players that need more time but Mourinho knows how to encourage young players.

CBs and Wingback's - Ivanovic can always played Center Back . We just need left back and again we have Bertrand but question is how good he get . Then there is Tomas Kalas who can play CB and RB . Nathan Ake is similar prospect to Madrid's Varane . Rumors say out favor of starting place Varane may come to Chelsea since Mourinho plans to bid in summer . Luiz needs disciplined partner , so for example never pairing him up with Cahil who just like Luiz is inconsistent . In Brazil he has Silva and they do very good job .

In conclusion , mostly we have every sort of player we need , but Mr. Abramovich's expectation's are too high and I am afraid half of these young players won't get chance to shine for Chelsea.

Mourinho is on the clock and can't afford to go season without title therefore he will pick only the ones he think are capable of helping him to achieve Chelsea's targets .