It seems to me that a lot of folks are jumping the gun on this one. I seriously doubt the kid has any idea which way he's leaning just yet, beyond having a list of three or four schools he likes.
I'm also pretty sure no one is so plugged in to Mack's recruiting as to say for sure he is or isn't recruiting Seastrunk. As to Seastrunk having some kind of posse, or advisor, any kid with talent out there usually has some hangers on. If he's smart, he won't let himself be guided by someone else. If he's not smart, Mack will snap to it, and Seastrunk won't wear burnt orange.
I don't claim to be an expert on either Lache Seastrunk or UT recruiting, but I'm betting Texas winds up with a very good running back or two, no matter which school Seastrunk chooses in a couple of years. Meantime, he needs the space to enjoy his high school career without being forced to play the recruiting speculation game any more than he wants to.