JT dint sign because he can not get in to UofI and odds are good he will not be able to. So till that gets cleared up it kind of is pointless, hopefully this will help us sell mins with Kiir and get him signed, then JT gets his stuff taken care of and commits in the spring
What's really happening is that Groce is telling JT to not sign so that rumors will spread about him decommitting. With the rumor, Kiir will likely favor Illinois. Once Kiir signs with Illinois, JT will sign his but it'll be too late for Kiir to change his mind. It's ingenious really.