Of course he can throw. Few turn DP as well as he does.
Sure, he'll dip that shoulder and fire an occasional routine throw 10 rows up, but over 160 games, it evens out.
He is off to a slow start (last april had 7 errors), but then again Visquel has
4 errors as well -- as do Tejada, Wilson, Guzman, Renteria and Jeter. Guess who leads the majors in Zone Rating?