Dirt.
I don't think Doc is gonna be askin Arroyo too much about Miami's offensive/defensive schemes. What I do think will happen is that Arroyo is gonna get in the celtics locker room and PP, KG and Ray are gonna start asking him about what goes on in the heat locker room.
I can only imagine the kind of dirt Arroyo is gonna provide for Paul and KG's trash talk. I can hear it now from KG "Carlos said you sit by your locker and cry after every loss man, you ain't no leader, you ain't no man. You ain't ever gonna win SPIT!"
I really hope that if there is anything goin on in that locker room that the celts can use to get into the heads of the heat that Arroyo comes forth with it. I hope he tells our guys what the players say about Spo and LeBron behind thier backs lol