At a June 2007 FCW show, Miller appeared as the manager of fellow developmental talent Shawn Mc Grath under the name Heath Wallace Miller Esq., but he reverted to using his real name and resumed his singles career while continuing to manage Mc Grath.In 2007, Miller was given a talk show called The Happy Hour during some FCW shows.
On the inaugural episode of NXT, Slater debuted as a face as he and Christian defeated Carlito and Michael Tarver in a tag team match.
Two weeks later, Slater defeated Carlito, becoming the first NXT rookie to defeat a WWE pro.
He is currently signed to WWE where he performs on the Raw brand under the ring name Heath Slater.
After debuting in 2004, Miller began wrestling for WWE in 2006 and competed in its developmental territories Deep South Wrestling (DSW) and Florida Championship Wrestling (FCW) before appearing on the first season of NXT in 2010.
On the June 7 episode of Raw, Slater and the other season one NXT rookies established themselves as heels by interfering in the main event match between John Cena and CM Punk, attacking both competitors, Michael Cole, Jerry Lawler, and Justin Roberts before dismantling the ring area and surrounding equipment.
At the Fatal 4-Way pay-per-view, the seven rookies interfered in the WWE Championship match, and as a result costing Cena the championship to Sheamus.On the May 6, 2011 edition of Smack Down, Gabriel, Barrett and Slater attacked Jackson, removing him from the group.Barrett walked out on Gabriel and Slater in a 6-man tag team match against Jackson and The Usos on the June 10, 2011 edition of Smack Down, leading to Gabriel and Slater telling Barrett that The Corre was over.This resulted in him being in the main event that night, a match against Kane, which he lost.In an upset victory on April 20, Slater defeated Chris Jericho in the main event of NXT.The following night on Raw, Gabriel and Slater lost the championship to John Cena and The Miz, but won the championship back minutes later after Barrett invoked The Corre's rematch clause and The Miz quickly turned on Cena. At the April 19 taping of Smack Down, the duo of Gabriel and Slater lost the Tag Team Championship to the team of Kane and The Big Show.