In theory you can't force any player on the other team to not guard one of yours. But in reality, you use your players to create mismatches in YOUR favor, by choosing which of your players to put in.
If you put in 2 bigs, like Dalembert and Evans, and 2 smalls like Andre Miller and Willie Green, that pretty much puts Iggy at the 3 spot, where it is easy for Detroit to put Prince on him. Since Prince is tall and long and hard for Iggy to score on or defend, this makes this match-up beneficial to Detroit. Therefore, MORONS, you don't play a line-up with two smalls, two bigs and Igoudala against the Pistons. Instead, you play 3 bigs, like Dalembert, Smith, and Young or Dalembert, Evans and Young, along with Igoudala and Miller in the back-court.
Once you make that change, now all the match-ups are in your favor, particularly the guard spots where Hamilton and Billups cannot deal with Igoudala and Miller, and Prince is guarded by an equally long, lean player in Thad Young.
What is so hard to understand about this concept? If Detroit chooses to keep Prince on Iggy, than one of the guards has to defend Young, which would give Phila. very easy buckets. You simply make it impossible for them to continue match-ups because it allows you to create even more favorable ones for your side.
The problem is Cheeks is generally unwilling to do this, which is why Detroit has been outrebounding the Sixers and getting second shots. Cheeks has more confidence in his shorter players, but they can't block out or rebound well enough. Any coach should be able to see his team is getting beat on the boards and attempt to make an adjustment. Cheeks just lives with it and lets the team lose.
A good coach would at least explore all his options and try different strategies. There's nothing unusual about that line-up, the Sixers used it to beat Detroit in March when Willie Green was out. Putting in 2 bigs and Young, put extra pressure on Detroit's front line and gave their guards fits. That sounds like the kind of line-up a coach would want to use.