DMI (Deliberately Meaningless Index) doesn't actually impact player skill at all. It's in essence Salary x Game Shape.
It's useful for training to see if a player has been receiving any, and it's useful for seeing how high of game shape a player is within their interval (8 could mean 8.1 or 8.9).
However, game shape plays no real role in how good a player is. You could have a donkey big at 15 in every big skill with 80 TSP hit 1,500,000 DMI while a balanced SF hits 120 TSP and barely scratches 800,000 DMI. However, the SF a much better player in most scenarios and will play better, he will have a lower salary resulting in a lower DMI.
I think therefore your suggestion is not useful and you might want to rethink that idea with this knowledge and likely how you scout opposing players in the future.
2x NBBA Champion: S55, S56. 3x USA Cup Champion: S54, S55, S56. WR for longest home streak ever at 11 in Season 47.