Here is a great article from The Oklahoman about George Herman (Babe) Springer, with insights from his coach at UConn:
Coach Jim Penders:
I've coached some great players and coached against some great 
players. He's a guy who has star 
written all over him. I don't know what ‘it' is but he has it. He lights
 up a room. He lights up a box score. The sky is the limit for him...
...It's his sixth tool that makes anything possible for George. Because he has those five tools, the sixth tool is what will take
 him really far. The sixth tool is his absolute love for the game. It 
oozes out of him. He loves baseball so much.