I'm not talking specifically a center, I'm just talking a deep bench power player like
@HuskyHawk describes, that may have limitations and is no threat to be a starter, but has a value added trait like rebounding/providing resistance in the lane. Heck, Xavier's international depth at forward came very late as a scramble after Freemantle became questionable. With a championship in hand and the talent to make another run, I;m not buying the idea that nobody was out there that was willing to help from the bench. It doesn't seem like front court depth at the 4 would have been a tougher sell than in other years.
We had Jackson and Hawkins on the roster and recruited Newton, Alleyne, Diarra, Calcaterra, and still recruited Roumoglou.
We had Sanogo, Clingan, Johnson, Karaban, Springs and still the 6'10 kid from Israel committed,
Just retaining Springs would have been adequate, but a move by him to play more is very understandable.