Currie is just barely under the 4-star threshold. PSU recruited plenty of kids in that ratings range under the previous staff (including Tyler Warren). From what I gather, the new staff prioritizes certain traits (like size) at different position groups, and they will go get what they are looking for regardless of what recruiting services say. So, we should expect them to bring in a number of three-star players they identify as kids that will fit well what they want to do. The hope is that the staff, with a bit of a track record to back it up, can coach and develop really well the kids they evaluate and target.
I might become concerned if the blue-chip ratio of signed classes starts dropping below the 50% level as a trend, if they strike out on most of the top players in PA they target, or if they don't acquire enough speed at skill positions and linebackers (speed is kind of important at the B1G level). But, so far we need to give them a chance to get settled into a new region of the country and establish their recruiting footprint. I see that they are targeting quite a number of blue-chip guys. Let's see how they can close, but we have a long way to go.