Exactly what I was going to say. Though, with a few go-to guys and if everyone buys into the system, you could see significant improvement in year two (which we're all hoping for), and really ready to roll by years 3-4, provided you don't lose too many key pieces either to graduation or the portal.Three years minimum. Five on the high side and, honestly, five is probably more likely for a low/mid major than others because of the new portal rules where players are all essentially playing on one-year contracts with opt outs every season and seemingly endless eligibility (Remember when we made fun of Zach Lofton when he started at New Mexico State, his 5th college, at age 23? This is somehow becoming commonplace).
I'd agree with the 3-5 years thing except how sustainable is that now? For the reasons you mentioned. A player at a mid with any significant eligibility left strings some good games together, suddenly P5 schools with big NIL budgets comes calling. That makes it harder for a mid to rebuild. You can still recruit really well and start to build and then have that talent whisked away by someone else. Personally, I f*****g hate it. It sucks that its a factor to consider.
We were kinda spoiled by the Jank years (scheduling notwithstanding, as we should've went to the tourney at least twice and maybe 3 times), because he didn't have to tear anything down. He inherited a deep, talented roster that Moser built & we won right away. The MVC was still very strong then too. Had the portal and NIL existed in those days, we would've lost half those guys and others like Oguchi and Odzic would never have transferred here.