After watching Connaughton play for ND, I think he could be a steal in the second round; good shooter from deep, and a great rebounder for his position.
With that being said, there's no way his vert is actually 44" Per NBAdraft.net:
Pat Connaughton's 8'0" standing reach appears to be an error. Players such as Jerian Grant and Olivier Hanlan with similar height and length had standing reaches in the 8'4" neighborhood. His 44 inch vertical is off the charts, and further adds skepticism about the 8'0' standing reach. Most likely there was an error made in logging his standing reach and it's in the 8'4" - 8'6" range and his vertical is between 38 and 40.