Here are my revised thoughts after weighing on everyone's opinions:
1) While Mike's health is indispensable due to the departure of Bobby, one can make an argument that Brad's health is of paramount importance too. Our offseason moves brought versatility at the SG, SF, PF positions so that if Bonzi, Peja, or Shareef should go down with injuries, flexible pieces can step right in. Since Shareef is not known as a passer and both Kenny and Brian are average passers at best, losing Brad would mean we lose the blueprint of Kings' offense: big man at the high post setting screens and setting up shots for others.
2) Yes, Bibby should play some D. Thanks for that reminder Piksi.
3) Bonzi will start because this is the NBA. I just hope there are enough shots for Bonzi and Peja (in their contract years), Shareef (because he's use to the one-man show at Vancouver, Atlanta), Kenny (because he's Kenny), Mike (because he's clutch and appropriately demands the ball), and Brad (to keep his confidence up because he's the best center shooting at the 15 foot range in the NBA).