Since wrestling began in 2009:
1 American has won his first senior-level world medal before he graduated college (Snyder)
5 Americans have won their first senior-level medals the year they graduated college (Herbert, JB, Green, Cox, Gilman)
4 Americans have won their first senior-level gold medals the year after they graduated college (Dlagnev, Varner, Stieber, Gwiz)
0 Americans from the Hawkeye Wrestling Club have won a senior-level world gold (unrelated but fun to type)
The only Americans who have won world medals in the past 10 years who needed more than one year after graduation were the ones stuck behind JB (Dake and DT), plus Coleman Scott and Joe Colon.
The time is now for Retherford, Nolf, and Nickal.