I guess it depends how you describe our system.
I would consider last year's system to be much more a double swing line-up than a 4 guard line up. La Salle was truly 4 guards, but I think small ball in an AQ conference makes more sense with 2 guards, 2 swings, and 1 true post so you get a little more size on the floor. That leads to 2 SFs that have some ability to handle, which is what we had in Rod and Shane. Rod was never really a guard IMO, he was an undersized SF and Shane is definitely a SF. So I can see where Griffin above makes some sense; he plays with Shane not as a back-up.
Honestly, my concern level would go in this order for ships: 1) post depth 2) swing depth, 3) guard depth. I'd rather find an immediate replacement for Rod than for Tay, but first priority should be another post, depending on what they think Fincher can do to help next year.