Starters:
Rondo, Havlicek, Bird, KG, Russell
Bench:
Cousy, DJ, Pierce, Sam Jones, Mchale, Cowens, Parish
I'm not sure I like my original starters, so here's V2.0:
Starters: Cousy, Hondo, Bird, KG, Russell
6th men: Rondo, Mchale
Bench: DJ, Sam Jones, Cowens, Parish, Pierce
Rondo as a 6th man would be absurd- he would immediately take complete control of the game. Oh and Mchale comes in with him to replace KG (or Russell) and give us an additional boost of offense.
Hardest omissions: JoJo, Tommy, Reggie and Max were all very hard to leave out