Could it also be an issue with the delivery of the ball by Martinez? Not mechanics, but the way the ball actually arrives ie some times nose up, nose down, velocity, trajectory etc...... I am sure that when you look at most QB's, they have a solid relationship with their receivers in regards to "chemistry" ie the QB and WR are on the same page. You even see drops when a new QB comes in during an NFL game. Announcers talk about them "throwing a different ball". If this leads to drops in the NFL, and every pass Martinez throws arrives as though another QB threw it, that could be an issue (not saying this is the case with Martinez, just a guess that each ball is thrown differently than the one before).
