It has to be Hackett.
I think a lot of people acknowledge that by playing in a Dome, Syracuse needs to be an offensive oriented team. So, now the response is to hire the DC over the promising OC?
I think the 2 most important people to try and keep on staff are Hackett and Wheatley. I think the only way Hackett stays at Syracuse is as the HC b/c I think he will go to the NFL as at least a QB coach if Marrone leaves.
Hackett has significant upside and this would be seen as continuing the program's growth with an energetic young coach with strong bloodlines, had a big hand in developing the offense and is one of the main reasons that Zach Allen is attending.
Plus, the defense returns a lot more talent then the offense. I think with this situation, it is more important to have a certain amount of consistent coaching with these guys as opposed to a new coordinator needing to install a new system and finding starters at QB and WR without knowing the players except from the spring and fall.
I like Shafer, but I think keeping Hackett (and hopefully by extension, Wheatley) would be the best course for Syracuse football.