A scout will get to see several throws by the outfielders to second, third, and home plate. If a player has a good arm, chances are he will show it here, particularly on throws to home plate. A strong arm is also necessary for infielders particularly the shortstop and third baseman. If a player has a strong arm, it will definitely show here. Look for a straight-line trajectory, strong hissing noise, and a loud smack in the first baseman's glove.
Speed is what all scouts and coaches look for in a quality player.
Speed kills and is very important in the grand scheme of baseball. This is one tool that does not go into those inevitable slumps. A speedy runner is a great asset on any club. A fast outfielder may be able to rundown balls in the gap, not to mention being able to steal a few bases to keep a team out of the double play and put himself into scoring position. At big league and college camps the test of speed is the 60-yard dash.