On one hand, your Center guarding his outside player isn't a great idea most of the time. On other hand, your Center will get a lot of possibilities to block a shot, so I guess it cancels each other out unless your center has either Atrocious OD or bad SB.
(48762640) Froget, 3 blocks
(46511291) Froget, 3 blocks
(48762627) Froget, 5 blocks
(52079077) Clemente, 6 blocks
Last game was a total blowout, but Clemente is nothing special - ID 7 and SB 6. Froget however has ID 14 and SB 8. I'm using 3-2 zone in all games.