Association advice please

I want to ask you guys for an advice. I'm not sure what should be my clutch lineup... Here's my team roster:

Shaq
Haslem
Beasley
Wade
Iverson
Chalmers
R. Lewis
D. Cook
J. Anthony
James Johnson
Allan Ray
Magloire

The CPU used to put these players on the floor on crunch time:

Shaq
Haslem
Wade
Iverson
Chalmers

My preferred lineup would be beasley instead of haslem, because haslem is just a terrible player for me because I cant hit shots with him, I'm not sure why I dont trade him.. Anyway I dont like D Wade playing SF. Last game vs OKC I used this:

Shaq
Beasley
Lewis
Wade
Iverson

I really missed chalmers' decent outside jumper, and Lewis allowed Durant to hit the game-winning shot at the buzzer as a result of his sloppy defense (the final score was 117-118). And I want to have AI in there because he's good at cutting to the rack and breaking ankles- great compliment to Wade.

So it's kind of a dilemma now, so I want your opinion on this and what lineup you prefer or would prefer :0] thanks

How many minutes left on the game do you usually rely on your 'clutch' lineup?
I don't rely on the situational lineups that much, just mostly on the matchups and pressure (options). Was Lewis your best or capable defender for Durant during that time? May be Beasley could have done a better job.

Maybe... oh well, it don't really matter, as I have the best team in the East, and I'm second behind the Lakers in the league in a matter of record, and power rankings.
Chalmers/ AI/ D Wade/ B-easy/ Diesel suits me the best, except that I don't like wade playing sf when I configured my plabook for Wade as a SG. I could put him to SG and to guard a SF on D, but AI as a SF? That seems a little bit.... abnormal