Gruden added missing pieces to the Bucs when he got there along with an offense. The Bucs were NOT favorites to get to the Super Bowl. Gruden beat the Eagles in Philly a VERY GOOD team, for the NFC Championship.
After winning the Super Bowl the Bucs started losing players to free agency as well as Coaches such as Lovie Smith, Mike Tomlin, Rod Marinelli, Raheem Morris, etc. This was their problem, they couldn't replace the coaches & the players because they didn't have draft picks, & couldn't sign free agents due to the fact they were at the cap limit.
The Bucs were forced to let some good players leave because of their contracts & the cap.
Last year he stuck with Garcia at QB, a big mistake in my opinion, he cost Gruden his job. I can't argue the fact his players didn't trust him, they didn't.
The Bucs draft record under Allen was pretty good I think considering the lack of picks they had.