The idea that Clifford was some lightly recruited unknown is false. He was an Elite 11 QB.
https://victorybellrings.com/2016/06/05/sean-clifford-named-accurate-elite-11-competition/
https://victorybellrings.com/2016/06/05/sean-clifford-named-accurate-elite-11-competition/
Bleacher Report Analysis
Sean Clifford's Elite 11 journey began with regional MVP honors in Columbus, Ohio, where he was steady and poised as rain fell. That showing carried over into finals action, where he emerged as a no-doubt invitee for The Opening.
Clifford, a tough competitor who doesn't back down under defensive pressure, is sturdy in the pocket and makes big-time throws by patiently surveying options, even as opponents approach. His anticipation sets him apart from many peers, as he executes play calls with decisiveness and swiftly identifies matchup advantages.
"He was very impressive in the pocket, and his drops were fluid, smooth," Elite 11 coach Matt James said after Clifford's regional effort. "He can drive the ball down the field, and it spins out of his hands really nice. His game film showed some of his athleticism, but it was nice to see him get out of the pocket and make a few throws that impressed."
His downfield arm strength is still progressing, and as that attribute develops, it will further augment an above-average range of accuracy. If Clifford gets hot in seven-on-seven competition, he's a dark-horse candidate to emerge in the MVP conversation