Looking back to three years ago. There wasn't a need since we had three guys at heavy for the past three years. You would have to bring in someone during their sophomore year (recruiting cycle before Nevills). It's a hard sell to get another top heavy to commit here with Nevills. Coon, Black and Bradley would be the top three guys. Getting Coon would likely eliminate Nevills and the depth issue comes back into play. The other two would need to redshirt and then possibly sit. Bradley could've been the only one that worked due to the mission, but you can always switch teams so that's no guarantee either. And there's always the trump card: maybe they just don't want to come to PSU.
Let's look back more than 3 years, because Cael has been hunting the Great Whale for a long time, and things could've been VERY different in a lot of directions. Expanding slightly to include 197 recruits, since they are potential backup heavies.
2010: PSU recruited Spencer Myers -- then the #1 215 in the country, from Selinsgrove -- but he went to Maryland instead. Gingrich and Ruggear walked on.
2011: PSU was the runner-up for Gwiazdowski -- then the #1 215 nationally. PSU was also a finalist for Andrew Campolattano. Collin Campbell arrived but lasted less than 1 full year due to off-the-mat issues.
2012: 3x PA champ John Rizzo opted to play football at Temple. Jimmy Lawson (#3 HWT in 2010) transferred in.
2013: Thomas Haines verballed as a JR. Kyle Snyder committed to Ohio State as a JR. Coon picked Michigan (I don't know if Cael was after him, but Nick Saban was). Brooks Black visited PSU, picked Illinois; word was the coaches were not impressed. Ryan Solomon (197/285) visited PSU, worked out frequently at the NLWC, picked Pitt. Aaron Bradley was very interested in PSU but picked Iowa (and had visited Cal Poly after states). PA runner-up Brandon Smith chose to play football. 2011 PA champ Garth Lakitsky transferred in for a few weeks before leaving school.
2014: PSU landed Nevills; Haines switched to Ohio State. I don't know if PSU pursued Michael Boykin (197), who committed to NC State very late.
2015: National #1 heavy Michael Johnson visited PSU, instead chose Yale football. Jordan Wood committed to Lehigh as a JR. Andrew Dunn picked VT, and Bo Spiller picked Bloomsburg. Tanner Hall (Class of 2011) returned from Mormon mission, committed to Arizona State. Hunter Ritter (197) visited PSU but picked Wisconsin after Kellan Stout committed. 2x PA champ Jan Johnson (197) and PA placer Ryan Monk opted to play football.
This is surely a partial list, as I'm not sure of all the possible heavies the coaches may have been after.
Anyway, point being: coaches have been after starting and backup heavies for a long time, and the road could've forked and twisted in a lot of different directions.