Not saying he will rise to those levels of play, but his game reminds me of both players. Great rebounders as undersized guys. Unseld was 6'7 245 and Chuck was 6'5" 250-275 (depending on the year).

Yoeli is a four but can stretch. He has 30 threes on the season so far this year, I think. You could probably play him at the three if you had to to get size and the best players on the floor, but it's not a best fit for him IMO. He is a quick footed four but would be a slow footed three, in my opinion. He has great footwork, but staying in front of a slashing three could be a challenge.