I wouldn't resign him but that is because I understand how to exploit a MLB who doesn't stack and shed.
You can run and hit with your Will, but usually a Mike needs to be able to stack and shed. (LVE failed at it)
LVE has played well the last few weeks, and Quinn is using him to his strength, but if he is a Will, then you have faster players in Clark and probably Cox.
If you are going to play him at Mike, then you are playing with fire to try and stunt with your DL because if you stunt and he chooses wrong gap, then RB is already at the DB's. If schemed with WR's running outs and flags, RB has big lanes up the gut.
For backup money, sure sign him, but when Dallas gets to the playoffs, he doesn't stand out as a sideline to sideline Will due to speed and quickness, nor a cover Sam, nor a Stack and Shed Mike, and will be a weakness OC's look to exploit. I'd be looking to upgrade.