I can’t promote other people’s things anyway, I’m on the bottom rung of the latter.

Leaf had off the field issues to match his on-the-field woes.

(IMO, his on-the-field woes were mainly inexperience and then injury related, JaMarcus is pretty much nothing like Leaf)

But JaMarcus has a big arm. After all, thats all that really counts

The idea isn’t necessarily that they would throw it down the field 60 yards, but that they could squeeze it into tight spaces by getting it by the defenders so fast that they can’t knock it away. There are also certain routes that (the deep out for example) that need a certain amount of arm strength or they end up being easy picks for the defense. Scouts love the big arm because they wishcast those throws on top of the deep ball. The thing is, unless the QB is already making those throws with his armstrength in college, then you will need to coach him up to do it. Footwork, accuracy, touch and mental wherewithal will need to be improved before the QB ever sees the fruits of that arm. Guys like Peyton Manning and Matt Ryan had all those things coming out of college and became studs. Guys like Brady and Favre took some time to learn the other stuff that would help them use their big arm. But, of course, its not a must for all systems. West Coast-style offenses don’t necessarily need the big arms. Hasellbeck, Bulger and Pennington lead franchises to the playoffs without those. And, like DCB said, there are guys like Rivers, Brees, Palmer and Warner that just maximize all their skills so that they don’t need one of the top 5 or 10 arms in the league to make “all the throws”.