Hi
Played many times. Here are the flaws: you can buy up all the free agents and then resell them, thereby gaining yourself as many draft picks as you want. In case of defeat in the playoffs, you can re-enter the game without saving, thereby rewinding the time back and replay, also with the draft. At the draft itself, you can exchange with another team for a lower draft (I have 30, it can usually be exchanged for 27-29 and so on) which is impossible in real life.