By Matt Hladik Steve Kerr just won his fourth NBA championship as a head coach. Jon Cooper still has a shot to win his third Stanley Cup in a row. According to Dick Vitale, the Golden State Warriors leader and the Tampa Bay Lightning head coach will “rank as all-time greats” when all is said and done. “I think there is no doubt that [Steve Kerr] and [Jon Cooper] will rate as 2 of the greatest coaches in pro sports,” Vitale wrote on Twitter this morning. “They have achieved GREATNESS at such a young age as there is much more to come.” Kerr’s Warriors wrapped up their championship last week, bea…