LOL. I've always believed that a contending team should have three Point Guard and three Centers, so you always have two. But clearly a starter, a bench player in the rotation and strength in reserve at the end of the bench, each accepting their roles.
Until the emergence of Len, I would have been comfortable keeping all three Centers. But it looks like Len will keep pushing himself until he gets his contract (or maybe beyond). The Center rotation lately has been only two of the three every game. So I would not be adverse to the Suns moving one of the three "lead" Centers (just as it didn't work with three "lead" Point Guards.
And if one of the two remaining Centers should go down with an injury, or with foul trouble in a game, improvise. That should make the you-know-who crowd happy. Then, in starting with a winning attitude from the start of next season, have a lead Center, a backup and the third at the end of the bench (or if a PF can step in with strength).
That is I, Mainstreet.