I’ve come around to transfer as a significant piece, if done correctly.
Whereas HS was super important before, now I think its deemphasized. Only take those that you feel STRONGLY will contribute in year 1 if not a premium positions like NT/OL and the high 4/5 star QB (those premium positions ideally would not have to come in and play asap). Most every other position you should have an expectation they will be on the field/performing in that first year. If not, cut bait.
The meat of the incoming talent would hopefully be those portals that have good tape as freshman and/or starting as a sophomore. We should tamper the **** out of these kids throughout the season once it becomes apparent they good. They would also bring at least 2 years to your program.
The other part of the team should come from one year mercenaries that are all about their business and need to ball out. These should supplement your roster where it has a one year gap to get you over the top.
I’ve seen enough of the portal trends that the talent available is only going to increase.