TOC is the expert here, so I may be wrong. But class cap is 25, take away 2 for the TN RB and the UNLV OL you have 23 to give. That leaves ~20-21 for High School commits, and 2-3 for the next wave of transfers.
I wasn't for 4 high school CBs in this class. 3+1 portal made more sense to me. But...