Coaching is a huge factor. I'm not sure if Sparano or Ireland alone is the problem as much as they are a combined menace to progress. It would take a miracle for Sparano to keep his job at this point. If Ross truly wants a winner, or some WOW factor, he's going to have to land a big fish. A Coach that players throughout the league respects. Cowher, Gruden, Dungy. that type of guy.
There is no way they take on the job with Ireland here.
As for the players themselves. It puzzles me how players come here and stink things up. it's like a place where careers come to die. it's sad. Are they being placed in positions to be successful? I don't hear of to many Dolphin Cast offs being successful other than Welker.
It's coaching.. it's talent.. that problem starts at the top.