While Koster was taken in the fifth round of the draft, he still could be a steal for the Toronto Maple Leafs. He has shown during his time with Chaska High School and the Tri-City Storm that ha could be an asset for an NHL club. Sure, there is a long shot of Koster cracking an NHL lineup one day, but if his development goes well then he could be of value for the Toronto Maple Leafs in the future.
Last season, Koster appeared in 55 regular-season games. Sixteen of those games were played with Team Northeast of the UMHSEHL.