Yeah, the only real concern with the bigs is the lack of depth, but if long term injury strikes, they can waive one of the partial guarantees to shore that up.
Even with Leonard's improvement in getting to the line/play making and Simmons providing some of the same, point guard is and will remain the clear number one concern.
The Thunder are obviously no longer a threat and the Clippers obviously still are, but I don't foresee a match-up issue with their bigs. On the contrary, whichever of Aldridge or Gasol they have Griffin defend, is likely to cause more of a match-up issue for them.