Why does the US have a 10 sec counter?

[SlySlickSmooth]

1) For refs to get ready.
2) For corners to get ready.
3) IF you hear it, get to shoe shining if you're losing that round.
4) Play your D and win the round.

[-MAKAVELLI-]

you dont want me to be the 10sec counter...i'd be ****ing that **** at 1:30 of every round