What do you have against gamesmanship? The bump or no bump is an exciting part of dual meets, especially ones with high stakes. It is something you don't get to see much in wrestling due to having weight classes and most of the times very few toss-up matches.
The solution is simple, if you have a weak kid and he would be overmatched coach him up. Teach him to stay off his back and slow the match down. Make the kid better, plain and simple.
High stakes duals with lineup shifts are exciting. See the Iowa vs. Iowa State match from this weekend as a great example.