NBA mechanics?

[rainmaker]

My family actually enjoyed an NBA game on TV last night, since the Blazers are playing real basketball these days, and also since they beat Sacramento.

But I noticed two things I thought were interesting in reffing terms. 1) There was one time when the lead was on camera, there was a skip pass from low post to low 3-point line area, and the lead literally sprinted across the lane to rotate. He didn't power-walk, he would have beat Michael Johnson. I thought running on rotation was verboten. 2) Ball in a 7th grade girls' type pigpile, closest ref wants to come in with a violation call, and he cups both hands around his mouth and whistle, directing his tweet and his voice towrad the players on the floor. I thought that was kind of a good idea. Is this acceptable? Have others seen this?