instead of playing hard.
I say call the play, let the QB make the audibles based on what he sees out there and if he makes incorrect audibles, Coach him up as those live mistakes can be some of the best teaching moments.
I think as a player that would kill me to get a play, get into my stance ready to crush someone and then have to stand up look to the sidelines and get a new play call with 9 seconds left on the play clock.
Drives me nuts watching it, can't imagine how this inspires confidence in the players.