Actually the real minutes awarded can be like this:
http://www.buzzerbeater.com/match/26304139/boxscore.aspx
It is possible to get 48 minutes a position...at least i set my line up like this:
A/B/B for three positions and the minutes were 36/12
A/B/C
D/E/C for the last two positions, and I had 36minutes for players A/D, 10 for Players B/E and 4 for player C