All season, the Houston Rockets had a lead guard problem after the major injury to Fred VanVleet. He was always near the team during his recovery, helping his young teammates develop their skills without a main initiator. After a season of mixed results having Amen Thompson, Reed Sheppard, and Kevin Durant play as the lead ball handler, the Rockets are prepared to see VanVleet return and lead the offense to a higher rate of success next season. The lead ball handler is an important role for the Rockets. Alperen Şengün often brought the ball up and initiated sets, but one of Houston's most effective plays is the pick-and-roll with Şengün as the screener. When VanVleet was healthy, that play created efficient offense. Şengün had many options once he received the pass from VanVleet: he could roll all the way to the basket for a finish, he could stop in the mid-post to work against a mismatch or a big in isolation, or he would kick out to an open shooter if he's doubled.…