You walk away from watching Marcus Allen, and you talk about the toughness. He is a strong-framed, long-armed wing prospect who simply enjoys doing the dirty work, the work that most players do not like to do. Allen is a tough defender; he has the quickness to defend the ball and the size and length to switch up a lineup and do some things in the post. He has lockdown-type potential at the highest level on that end. Allen is a good rebounder in his position as well. He finishes well around the basket, especially in straight lines, but will…