I'm sure there would be a lot of debate on the exact numbers, but something like this would change the current reality which rewards ignoring 1-2 MinL teams.
If the new reality was, You're Going To Pay For Them Anyway, I think more GMs would at least field teams.
And this would allow the next obvious step -- If you're MinL team isn't full, the SIM will sign players. Since the money is already set aside, there's no issue with the SIM having to decide where to get the money from.