The Houston Rockets are heading into the offseason with a high possibility that most of their main rotation players return for next season. They're expecting improvement from their young players like Amen Thompson, Reed Sheppard, Jabari Smith Jr., and Tari Eason to help supplement what they're getting from the team's returning veterans. Despite conversations surrounding trades and an up-and-down season , Alperen Şengün is a vital part of what the Rockets can accomplish if he is still a Rocket by next season. Şengün's performance this postseason was suboptimal . He has struggled to figure out how to finish consistently at the rim in isolation, settling for tough hook shots that don't fall at a high enough rate to justify the frequency he goes to it. Şengün's jump shot also had fluctuating effectiveness from further away from the basket. While these are individual skills he'll have to continue trying to perfect this offseason , the Rockets can maximize his skill set by having better shooting around him.…