I'm glad you posted these. It seems clear that of the most successful big men pairings includes one guy who can shoot and another who is a paint scorer (either via post ups, rolls to the rim, or cuts).
If the C's are going to be offensively successful all of their big man pairings should include one of Jerebko or Olynyk (if we are going small Crowder at the 4 is also acceptable). None of Lee, Zeller and Sullinger should be on the court at the same time.
Ideally the C's will trade one of their bigs for a swing later in the season that will improve floor spacing.