I don't have a huge problem with going portal, but you still have to get players out of high school. Difference makers.
If we go too portal heavy, there's no way the culture can survive. The one year mercenaries are fine to get in where they fit in and fill recruiting holes, but I don't want to see 20-30 transfers a year like other schools.
I also understand not dropping bags on unproven high school kids that may never play a meaningful down.
Be great at rewarding your current roster, fill holes with the portal, find good fits in HS recruiting.