3 man free throw administration

[ballgame99]

Worked a middle school game 3 man last night for practice. I have very limited experience with 3 man, and neither of my partners did either. Free throw admin was very shaky. I wasn't sure what I was supposed to be looking at, or what my partners were supposed to be looking at. I could use some guidance.

L - looking across the lane at realease, and at low block rebound action?

C - looking for thrower violation, or any above key player violations, and rebound action. Are any of the lane spaces my responsibility at release? Do I signal clock, or just leave that for T?

T - Overall action? Checking to see if shot hits rim? Am I responsible for any particular lane spaces here?

Thank you for any input.