I haven't seen any thread on this subject, yet I think this kind of mishap had happened to other coachs.
We had a great season in France IV.45(2)
http://www.buzzerbeater.com/league/809/overview.aspxwith 4 teams fighting for the first positions. Toward the end of the season three teams were tied for the first place. So it was clear that the points differrence would be critical. Prospects looked good for me as I add a little points advantage.
Then 2 weeks before the end the last team of the conference was substituted by a new player and a new team. The trouble is that I had allready played this team before, and at that time it had a 35000$ and a 25000$ players among other. So my competitors would instead faces a beginner team with players from 3000$ to 5000$. Compared to me they get 25-30 extra pts, putting my leadership in jeopardy.
As if it were not enough the next to last team played rather "casualy" sometimes fielding only 4 players. So despite the exciting season, top team's coach had a bitter feeling as the competition for the first places was skewed by the last ranked teams.
So to try to recover the first place I played Crunch Time for the last game of the season vs a week team, against which I expected to play TE to be ready for the play offs, if I had maintained my point advantage.
Finally I kept the first place, but I payed the CT dearly loosing the first play off round in Overtime. While I had a 5 pts lead and the ball with 13 second to go!
So I wonder If the system could avoid subsituting teams during the last third of the season. Eventually playing them as bots until the end of the season, as they are if the player retires. It's also irritating during the first part of the season but it's more manageable. Actually ther is a large gap between the weaker in D.IV (this might varies from countries to countries) and a brand new team. Starting newcommers in D.V, and waiting the start of the next season to tidy up the bots teams and retired players, would make for a fairer competition.
I clearly understand that BB is a game, moreover with free access, that some peoples my just want to take a look at it and resign. I also suppose that most of us as more important thing in there real life. But this is one of the most frustrating aspect in the lower leagues.