I'm not sure what this means... and what kind of incentives are we talking about.
Its really an idea stolen from Jake's league ACQ. It rewards teams for finishing first in their divisional races or the championship. Therefore, creating more competition, ideally.
For example:
Division Champs receive a 10% discount on one free agent, or player, or whatever, for the following year.
League Runner-up receives 15% " "
League Champion receives 20% " "