Well okay, I think this belongs in this thread:
http://www.nbaliveforums.com/ftopic42263.php
Okay, to answer your questions: The cpu does this sometimes, just standing still but usually he jacks up a shot with 2 seconds left or he get's a shot clock violation. Check out whether you have enabled the 24 sec. rule.
Please clarify your second post, everytime the cpu wants to sub you commit a foul? Ehm thats pretty normal, as you are only allowed to sub after a foul, free-throw, out of bounds etc... and there is no need for the cpu to have pending subs as he can make this decision in milliseconds. So nothing special about it.
And btw... make use of the edit button, no need to double post.