I believe your guess is off when comparing against the box scores and play by plays available on NUsports.com. There have been at least 3 games, all which were competitive instead of blow outs, where Nance had 2 fouls in the first half. One where he picked up his second with 9 minutes left on the clock.
I went to check the box scores. I only looked at the play by play of the last 4 games. I could not care less about what happened against Eastern Illinois (maybe High Point could be argued to be included, but that was not a "proper" game. It was just one we failed to not make it a close one).
Providence
Nance (34 min/2 fouls, 0 fouls at the 1/2) -
Young (16 min/0 fouls)
Bench at 13:05 - 0 fouls - Floor 15:48
Floor at 10:58 - Bench 10:58
- Floor 7:18
2nd 1/2
Foul at 19:26 - Floor 15:39
Bench at 15:39 - Bench 13:18
Floor at 13:18 - Floor 7:38
Bench at 7:38 - Bench 5:50
Floor at 5:50 - Floor 0:11
Foul at 0:25
Georgia
Nance (24 min/3 fouls, 2 fouls at the 1/2) -
Young (28 min/2 fouls, 0 fouls at the 1/2)
Bench at 15:56 - Floor 15:56
Floor at 13:37 - Bench 10:00
Foul at 11:53 - Floor 8:32
Foul at 8:32
Bench at 8:32
2nd 1/2
Bench at 14:39 - Floor 14:39
Floor at 13:51 - Foul 12:56
Foul at 7:57 - Bench 9:39
Bench at 7:40 - Floor 7:40
Floor at 4:00 - Foul 0:59
Wake Forest
Nance (29 min/3 fouls, 2 fouls at the 1/2) -
Young (16 min/2 fouls, 1 foul at the 1/2)
Bench 13:00 - Floor 13:00
Floor 8:57 - Foul 11:19
Foul 7:42 - Bench 8:57
Bench 6:25 - Floor 6:25
Floor 2:24 - Bench 2:24
Foul 2:03 - Floor 2:03
Bench 2:03
2nd half
Bench 14:26 - Floor 14:26
Floor 8:08 - Foul 11:45
- Bench 8:08
Maryland
Nance (31 min/3 fouls, 0 fouls at the 1/2) -
Young (11 min, 3 fouls, )
Bench 14:27 - Floor 15:51
Floor 12:10 - Foul 13:33
Bench 8:27 - Foul 12:10
Floor 7:59 - Bench 12:10
2nd half
Foul 16:27 - Floor 15:16
Bench 15:16 - Bench 11:02
Floor 12:03 - Floor 6:26
Foul 11:02 - Foul 6:10
Bench 6:26 - Bench 3:21
Floor 3:21
Foul 0:50
So here are some of my conclusions from the data above, knowing it is just 4 games:
1) Both Nance and Young had 1 in 4 games where they got 2 fouls early on and limited what could be done
2) Nance had a 2nd game, against WF with 2 fouls in the 1st half, but one was with 2:03 to go
3) Neither player has committed more than 3 fouls in one game
4) The idea that RY does not play more because of fouls is horse manure
5) What you can count on is the sub at the 15 minute mark. Both halves
6) The overlap if the two players is for a few players here and there, except the 1st half of the Providence game where we were about to be blown out
7) The natural minutes, barring foul trouble, for Nance would be at least 32, sitting once for 4 minutes or so in the 1st and once in the second
8) The natural minutes, barring foul trouble, for Young to play would be 10-12. 4 in each half to rest Nance and 2-4 of overlap that I wonder if it was just a "whoops, did not realize I put Nance back in and did not take Young out"
9) Beran and Williams count for any considerations of minutes played by Nance and Young, but probably very little.