We already are experiencing the stagnation and slow collapse of this game.
We need to shake things up and soon.
As reguards to the playing bonus, a flat bonus would not work, I was thinking along the lines of an incremental bonus like enthusiasm that will eventually cap. When new players are aquired, the team tactic playing bonus drops of in the lineup, and in increments grows back again showing familiarity in whatever offense is run.
Might take you up on your offer hrudy.
Whether the bonus is incremental or not doesn't really change that it's not a solution that encourages people to try new tactics - it's more of a solution to the problem with rented players for the playoffs (and may well be a good reason for that). But if the problem is that people are continually using the same tactics and then you offer them a bonus for consistency in their tactics, I can't find any logical reason to think that would do anything but entrench the tactics.
I think a more significant paradigm shift would be occurred with a simple redefinition of the shotblocking skill to address a very real balance issue (I think wolph is the one who has pointed out this problem most, but if not he I know it's been mentioned and I do not claim credit for it). A significant balance issue exists because there's a fundamental difference in the offense/defense mechanic for inside versus outside shots. For outside offenses, you need JS and JR to be able to shoot effectively, while both are shut down by OD (a single skill that also effects handling, passing, and so on). For an inside offense, there's a single skill for inside shooting, while there's ID and SB to defend it.
As an alternative, what if shotblocking were made the skill that affected the probability of a shot being made, and the OD and ID skills were more about preventing passes to the outside and inside and being able to get good enough position to give an opportunity to block the shot? Training would have to be changed to reflect that, and there'd still likely be a ton of value in high OD still, but allowing ID to prevent passes inside and making perimeter defenders invest in shotblocking in addition to OD would at least be a step in a new direction.