This^. There are a ton of good players, especially PGs and combo guards, who were total dogshit in their first season.
I did not follow the draft all that much. After we drafted Sexton I watched a few of his games and studied his stats. I was not a huge fan...
But he has shown promise in the NBA. Is he frustrating to watch? Yeah, sometimes. Is his vision bad? Some of the worst I've seen. Is he defense leaving a lot to be desired? Yeah, but it is not because of lacking effort.
Nonetheless, give the guy a break. He's scoring at a PRO level and, once he stops shooting so many midrange shots, his efficiency will skyrocket too.