If he goes to a bowl this year he stays on. Reason being that marks improvement. I think next year the mark would be to go to a bowl and... make it to the conference championship game. Anything less and it's time to make a change but as far as this year goes so far, each week has shown steady improvement, so you have to let him play it out till the team is mathematically out of contention for a bowl bid. He is also a good recruiter and has managed to get more quality in-state kids to commit than Edsall ever did. GDL, for some unknown reason, seems to be liked by recruits so if he can build some powerhouse offensive line then he deserves credit for it but..... if the O-line continues to be the Achilles heel of this program he needs to go.
I know a lot of you guys don't want to hear that but you got to let things play out this season. And..... be careful what you wish for guys. The next one in Is NOT going to be a Chip Kelley or Urban Meyer and will have to establish a recruiting pipeline. Hopefully it will be better than Edsall's but recruiting for this team at this time is going to be a real challenge for anyone coming in. Don't expect miracles.