Man, I think the lions have most of the pieces of the puzzle in place. Very good D line, very good offense front to back. Franchise QB, best receiver in the game, decent 2 and 3 wideouts, usable TEs, 2 very capable RBs. What more do they need??? Oh yeah, a good coach. Schwartz is not a good coach.
IMO, if they want to really be contenders, they need a good offensive minded disciplinarian coach. That coach will need to bring in a top d-coordinator.
They need to get with the program soon too. Not saying the lions are old, but they aren't getting any younger.
JMHO, personally I hope they keep sucking, better for the Packers.
Edit, Ken Whisenhunt would be a good fit, but as brilliant as they are they will probably hire Jack Del Rio.