I think the issue (and purely speculative) is Mario applies his HS approach in recruiting to portal kids. We know Mario is thorough with HS kids. he builds relationships with the kid, his parents etc. Has strict visit requirements, wants kids to visit with parents before making a decision to help cut down on issues down the line. he wants to fully vet them and have the kids fully vet us. It is fine in HS when you have months (or years) to do that.
However he needs to adjust that in the portal. Portal will be much more hit or miss and you have only days. You cant go with the lets analyze this kid then get everyone and your grandma on a visit, take your other visits then make an informed decision. Basically he needs to go from realtor for luxury homes sales approach (where you uncover every rock), to pressure used car salesman tactic. There is ZERO reason Manny should be more successful in the portal than Mario. Yes this approach will leave you with the Tommy Kennedys of transfers but those are the risks you need to take to get the good ones.