hmmm well I am relatively new, but I do find myself frustrated by the lack of options and unclear statistical categories. I see the same teams having success year in and year out so I do know it is not completely random. However, it shouldn't take 5 seasons to get a hang of things, and there should be a guide with definitive information. As Tcochran said, we are paying customers. When you go out to eat, and food is served cold, do you stop complaining when they promise to hire a new chef someday? I paid for this dish. Now the reverse is true too: if I keep returning to that same resteraunt, and complain everytime, I am foolish.
I enjoy building a team/program, and I will see through a few more seasons because it is not terribly time consuming and I do love football, but I can see myself simply returning to EA's NCAA football. Some might be into math and enjoy trying to make sense of the game engine and the mechanics and stat categories. I enjoy football though. When it becomes less about football and more about deciphering mystery mechanics, the thrill is lost.
Perhaps some people can be more polite when vocalizing frustration, nevertheless, when frustration is met with silence, or the implication that we expect too much and/or should shut up and grin, or that programming more ergonomic features into the game is too difficult, than we have to wonder what we are paying for. 11 bucks a season in an age of "free to play" online games is not cheap. Most games requiring monthly subscriptions are no more than 15 and they are constantly updating and adding features to keep customers coming back. They most definitely offer a definitive guide.
For now, I am enjoying the game for the most part and hope things come together soon in terms of direction!