Well, outside of the services, I like to rely on coaches I trust. Camp or late-bloomer offers from guys like Don Brown, for example, are huge. Dantonio excels there too. It's not just UW. Iowa does well. NU too.
There are a lot of kids out there who don't shine on film until they are seniors. For them, it's too late to get to 4/5 STARZ!! status, but it's not too late for them to get big offers and play like STARZ!! in college.