People are fooled very easily by shooting percentages.
Mathis from the "re- start" of B1G play, actually has a very respectable percentage from 3 and essentially won the Minnesota game, with a clutch and must-have 3 pointer from the corner.
Here's the reality....teams are afraid to press Mathis. Because he's got the capability of getting his shoulders past his defender and to the basket to draw fouls....so teams that properly scout Mathis, are "giving" him the room to shoot a 3......that helps his shooting percentages from 3...
Teams playing against Young are going to be playing him to drive, because he's by far the quickest guy we have off the dribble...teams will give him room and reluctantly give him a 3......that should help his 3 point percentages.
I can see Mulcahy getting into the paint. Drawing and kicking out and scoring....and I can also see scouting reports adjusting and playing Mulcahy to drive....they will guard him closer, until he can prove he's quick enough to beat defenders off the dribble.....which is his strength......so teams will give him room to shoot the 3.....all he has to do is knock down open 3s....which if Mulcahy can make plays off the bounce (which he will), RU is a better team...despite his lack of showing he can shoot 3s, he should be solid.
Factor that with how teams guard Geo Baker, who can get by some defenders, but isn't a mid range off the dribble shooter. Geo creates shooting space, by "crossing and stepping back" to score. His 3 pointers are more contested or much more difficult than the ones Mathis, Young or Mulcahy's should be.
The 2 players who have the ability off of this past season to shoot 3s while being defended and the ability to generate his own offense off the dribble in traffic are McConnell and Harper Jr.
There are 3 point percentages that are legitimate examples and others that are scouted or "baked into" the numbers. I don't think anyone would argue that Baker, Harper are the 2 best 3 point shooters on the roster, but the way teams defend RU and how much our players improve on their weaknesses while maintaining their strengths is key.