1.) Roughing the passer: Yes, protect the quarterbacks BUT, giving a guy a 15 yard penalty for brushing the guy is a joke.
2.) Defensive holding: A 5 yard penalty and an automatic first down is a joke. Convert it to a 10 yard penalty but no automatic first down. If it is blatant then call pass interference.
3.) Pass interference: WAY to inconsistent in my opinion. Hand fighting should be allowed. If the pass is underthrown and the corner is looking back at the ball and runs into the reciever it should NOT be P.I. in my opinion.
They should also have 2 levels of pass interference. One should be a 5 yard penalty and an automatic first down. The other should be a spot foul, The spot foul one shouls be called only when, in the judgement of the official, the defender deliberatly stopped the reciever from being able to make a play on the ball. Some of these 40 yard pass interference penalties are simply two guys fighting for position and the official calls it...that is crap.