This is lacrosse people not football. Size is not a factor. In fact many of the best attackman are small as are many top midfielders, while I do not think size matters at attck perhaps it does more in the midfield. The top attack in the world are McArdle Jordan wolf Rob Pannell Joey Sankey Will Manny, Steele Stanwick. the list goes on and on Attacking a kid is weak. That boy as well as the express player will both be more than fine ! Because of the trend and success of smaller attackman it will effect the defensive positioning as well .