Who will be Rockets' starting PF?

The new-look Houston Rockets tip off their 2013-14 campaign in just a matter of days, yet coach Kevin McHale has yet to decide on a starting power forward. At this point, Terrence Jones, Donatas Motiejunas and Omri Casspi are in the mix, but McHale also seems open to the idea of starting Omer Asik next to Dwight Howard, despite the obvious problems that might create.