This a great move for AG because it’s the Jets. If he can turn it around, he’s a legend and a head coach for a long time. If he can’t, the rest of the league won’t hold it against him. Saleh still got HC interviews this cycle because it was the Jets.
Worst case is he gets fired in 1 or 2 years, he’s able to collect on his contract until he gets his pick of top DC jobs. He’s back where he started but with HC experience on his resume and a whole lot more cash.