Ben Hemmerling must improve his skating
While Hemmerling is a fast player on the ice, he doesn't have the best skating. He has above-average acceleration, but can't hit top speeds with ease. Hitting that top speed is paramount to creating separation from defenders, making him a more potent offensive threat.
Plus, his current speed isn't sufficient enough for the NHL's fast pace of play. You can have all the puck-handling skills to fend off defenders. However, life becomes much easier with finding that fifth gear. With that, he can also become a breakaway threat and slip past opponents easily.
Luckily, the 20-year-old can develop this skill with the Henderson Silver Knights. Here, he can learn how to keep pace offensively, learning how to stretch out his stride. His development at the AHL level will be crucial to cracking the Golden Knights lineup, where he can become another future offensive piece.