in case you set your PG to play all 48 minutes and he gets hurt...you're centers will play ~86% of the available minutes at PG
Been there. Odd things seem to occur when I actually take the time to view a game, which is really rare.. so I don't know how often these odd things happen. But yes, I've seen my starting C/PF get swapped into the PG/SG positions when my pg/sg either got hurt or fouled out (in my case, I believe he fouled out IIRC, and I had no backup slotted in).
BTW, my C chucked a 3 and made it. A wtf moment if I ever experienced one. That's the only reason I recall it actually. It made me laugh in a rueful manner.