They had a small problem inside the club. They were actually down in the relegation zone when half of the season was gone. This was due to some serious problems regarding their president, and in addition, the manager wasn't doing his work properly, which resulted in Sporting spending their time far lower down than usual.
The manager eventually got fired, and there was a new presidential election. They've now got a new manager and president, both doing a good job.
Right now, they're doing well, as said, and there's no real crisis there I believe. :p Maybe there was, but they clearly did the right thing by replacing the manager and president. They're on a good track right now and are fighting for the 6th place (usually they're within the top four), which is the last Europa League spot in the league.
is there any reason why this club is going backwards fast?