Question $1$: What should be this auto dealer compensation strategy for each of the three positions? Why?

Question $2$: Which motivation theory $($or theories$)$ may explain the high turnover rate for the sales positions? Please define the theory $($theories$)$ first and then apply the theory $($theories$)$ to explain the high turnover rate for the sales positions.

Question $3$: There have been some issues with each of the three positions, what changes in the compensation package for each position will help address the issues for each position?