The problem I see with MER is that you can double up the categories fairly easily. By gutting your bench you are lessening your PP potential and you are drastically increasing your MER because you have no bench guys to bring down your efficiency. Teams with no depth at all have a huge advantage when using MER. You don't even have to make good lineup decisions........they are already made for you.Manager Efficiency Rating (MER) is a category that I think would help keep everyone engaged. It would be calculated by dividing points scored by potential points (to the thousandth, like batting averages). Highest MER gets most draft points. Even if someone's season isn't going how they want, the minimum expectation should be to set the most competitive lineup each week. Having the MER category can reward managers who stay engaged throughout the year. Even if a team is not very good, making optimal lineup decisions is within everyone's capability. I've even thought about having a payout prize for highest MER.
Example (12 team league):
Team A has worst record (12 draft points), 4th lowest in potential points (9 draft points), and lowest MER (1 point) would accrue 22 draft points.
Team B has 4th worst record (9 draft points), 6th lowest in potential points (7 draft points) and 6th in MER (7 draft points) would accrue 23 draft points