Just a bit of friendly advice, it is better to finish last in the league above than to try and fight for promotion again in the league below. Financially wise, you are better off in a higher league even if you are unable to compete at that level.
Dont get wrong, if i was good enough to promote, i would have! i certainly didnt not promite through choice, its cause I wasnt good enough! :)
but i say it in retrospect, looking at where i am now, financially, draft picks, scouting points, arena size, etc in retrospect, ive made the best out of not promoting, and im glad i didnt, because it allowed me pick up some silverware last year, and be in an excellent position to do the same this year, AND potentially promote AND be competitive when i promote AND work on some excellent trainee's. of which i may or may not have yet. LOL
With regards to the cap, i dont think it would actually fix anything in the game. It would change how the game is played, and is probably just an alternative mechanism for implemtation of the game.
So - thinking out loud, how can it benefit the game? .... more cash in ones pocket? limitations on what players you could buy therefore mildly affecting the transfer market (ie: less buyers = prices go down)..... Top teams in a league would all be very equal? maybe too equal? it would make it harder for a lower division team to build a team ready for the next division..... It would add an interesting management element to the game i have to admit. ... i think it needs a workshop. To the pub I say.