Josh was an all-district receiver at Texas' Lake Dallas High School. When he initially arrived in Iowa City to play for the Hawkeyes, he thought he would be catching passes. It ends up that those passes would be from the opponents' quarterbacks.

He redshirted in 2014, and then moved from receiver to cornerback in the spring of 2015 and served in a reserve role on defense for two seasons behind a talented set of Hawkeyes cornerbacks. Josh played in all 14 games in 2015, making eight tackles and breaking up two passes. He played in 12 games as a sophomore, starting the team's bowl game and finishing with 10 stops, one for loss, and four pass breakups.

Josh became a national name in 2017 by finishing as the nation's leader with eight interceptions and 26 passes defended. He earned first-team AP All-American and first-team All-Big Ten honors as a 13-game starter with 48 tackles, a forced fumble, and a blocked kick.

Now, he is on his way to becoming a household name in the NFL.