Harrison was not selected in the 2015 NBA Draft, but the Hornets scooped him up after a good performance at summer league. Unfortunately for Harrison, the Hornets have a deep backcourt that includes Kemba Walker, Jeremy Lin, Troy Daniels, Courtney Lee, Jeremy Lamb, and until recently, Brian Roberts. There weren't enough minutes to go around, and as a result Harrison spends most of his time sitting on the Hornets' bench.
Harrison's only played in 18 games this year, averaging a meagre 4.1 minutes per game. The majority of those minutes come in garbage time, leaving little chance for Harrison to get quality minutes even when he does play. In sending Harrison to the D-League, the Hornets are getting him the minutes he needs to develop.
And, via the Charlotte Observer's Rick Bonnell:
If Greensboro Swarm was up-and-running, Harrison would have spent lots of time there this season.— Rick Bonnell (@rick_bonnell) March 13, 2016
What Bonnell said is true, and a big reason to be excited about next season. The Swarm will give the Hornets a way to develop those second-round picks and undrafted players the Hornets are so fond of.
Until then, though, we'll have to rely on the Bayhawks.