Let's make the assumption we keep our 7th pick (approx 72.5% chance of doing so). Lets also focus on bench depth at the 4 position (primarily). Instead of rolling the dice on a rookie Harrison Barnes (who I do like) or Sullinger, we trade the pick + Dorrell Wright (& a second rounder probably) for a proven rebounder who can also score a bit.
1st idea: target Paul Millsap. The Jazz are stacked in the front court & need to make space for D Favors. Utah also desperately needs an accurate marksman & D Wright fits that bill. In a very deep draft Utah would love to get hold of H Barnes at number 7 given their SF position is a weak area. Raja Bell won't be in Utah much longer as him & Coach Corbin ain't getting along at all. The salaries roughly fit.
2nd idea: Anderson Varejeo. More of a longshot given the Cavs lack of front court depth, but they do have a young Tristan Thompson who can board. It works as far as salary goes, but Cleveland would want more.
3rd idea: Luis Scola. Even more of a stretch, but would be a perfect fit. Houston too would want more.
The next 2 options / ideas are draft focused.
4th idea: Keep our picks & target Jarred Sullinger. He may struggle to score over some NBA bigs but as the first big off the bench he would bang & grab boards. With D Lee & Bogues in front of him he would feel very little pressure & would learn from them in bunches. The downside here is that we are stuck with below average SFs to insert into the starting lineup.
5th idea: Keep our pick & target H Barnes. This guy could be great at the SF position for us for years to come. He will definitely offer more than DWright or RJ. He is a great shooter & a good defender too. We wouldnt need rely on him to score a tonne as our other 4 starters will likely give us 60-65 pts per night, & with Rush coming off the bench as 6th man we would have plenty of fire power. The only prob here is that our rebounding depth isn't addressed (bench depth) & we would need to go to free agency in that case+ it's very much a youth plan.