I believe in the case of a starting QB, having a wider repertoire of throws is important in that eventually opposing defenses will determine which areas of the field it does not need to defend or in the alternative force the QB into his least comfortable option. When that happens the probability of success lessens. Again, I advocate for no option at this time but rather point out that if Orton plays to his average stats, many will not see him as a long term option in the days of a "QB driven league." PS: I believe that QB driven league is pablum served to the masses raised on Madden and FFL. Strong D measured on points allowed and a strong running/possession game can still win championships i.e. Seattle, Ravens.