The real question is will the jets give the guy time to put everything in place? The jets have a long history of not giving their coaches a chance to succeed. Pete Carroll comes to mind as a shining example.
The Jets will be the #3 team in the division next year behind NE and Miami (The Bill situation is still up in the air), with salary cap issues from the Penington deal, and a new (young) head coach. To expect more than 8 wins next year is unrealistic, but since the jets thought they were headed for greatness this year, will Gang Green give this guy a chance to rebuild?
How hard it is going to be to coach in a division with Saban and BB for any coach, even one who has somewhat of a clue as to how those two coaches gameplan?
In today's NFL - I think Rebuilding is a 3 year window:Year 1 - Play the team as is for the most part and get a feel for the team
Year 2 - Weed out the players not "On Board" and get a few more wins
Year 3- Go for it.... With Year 4 as well...
The Jets have a pretty good defense and I think Mangini, being in the AFC east and around the Jets for so long already has a pretty good feel for what he has... So, he has a head start on step 1...
Really it's the Offense that needs to be rebuilt.... I think Mangini can work well with that defense.... Maybe Abe should go which will give them a lot of flexibility to spend the Money elsewhere - Possibly draft the top LB Hawk and go 3-4.