You guys are really ignorant if you think an NFL WR coach doesn't teach technique. I am not a Dooley fan, but the hate is getting out of control. This is part of the Cowboys hype machine. Sanjay Lal is a journeyman position coach who, as far as I can tell, has only produced a single 1000 yard receiver.
His stints at the Raiders, Jets, and Colts produced some of the worst WR output in the league in those respective years. Like dead bottom of the league.
If you are expecting big things out of this group, you are going to be disappointed.