In the offseason, Mike Tannenbaum signed Mark Sanchez to a three year extension with 20 million guaranteed. He rewarded a guy coming off an average season, and now the Jets are stuck with Sanchez for the near future. The extension makes it nearly impossible to trade him or cut him, so barring a miracle, Sanchez will most likely be on the roster next season.
2) Drafting Vernon Gholston
With the sixth pick in the 2008 NFL draft, Mike Tannenbaum selected Vernon Gholston a defensive end out of Ohio State. Everyone expected him to be an elite end and get a lot of sacks. In three seasons with the Jets, he did not record a single sack and ended up being the biggest bust in Jets history. The Jets could of selected Ryan Clady, Sedrick Ellis, or even Chris Johnson.
3) Trading for Tim TebowDuring the offseason, Mike Tannenbaum traded for superstar Tim Tebow. He gave up two picks for a guy who rushed for two yards a game. While Tebow was brought in to motivate Mark Sanchez, he ended up being a major distraction and led to the downfall of the Sanchize. Tony Sparano failed to use Tebow in a good wildcat package and he did not help the Jets what so ever this season.