I'd like to see Joe offer Zoubek and about 3 other undrafted Centers a chance to come play for the mighty Pistons in the LVSL. Throw a bunch of 7-footers at the wall and see if any of 'em will stick.
The Pistons DO potentially have a roster spot for a developmental big guy. That could change with free agency. Anyone who wants to make an NBA roster who's a center with half a brain will come in knowing the only way that's happening is if they're a defensive and rebounding maniac.