K.J. Black was named Atlanta Falcons offensive assistant on Feb. 3, 2024.

In the 2024 season, Black worked primarily with the team's wide receivers, guiding third-year wideout Drake London to single-season career highs in receptions (100), receiving yards (1,271) and receiving touchdowns (nine). London became the third player in Falcons history with 100 receptions, 1,200 yards and nine touchdowns in a single season, joining Roddy White (2010) and Terance Mathis (1994).

Black also worked with free agent additions Darnell Mooney and Ray-Ray McCloud III. In 16 games played, Mooney recorded 64 receptions for 992 yards and a single-season best five receiving touchdowns. McCloud recorded career bests in receptions (62), receiving yards (686), rushes (10) and rushing yards (79) in his first year as a Falcon.

Black arrived in Atlanta after spending two seasons (2022-23) with the Los Angeles Rams. He served as an offensive assistant in 2023 after spending 2022 as part of the Bill Walsh Diversity Coaching Fellowship, where he worked alongside Falcons Offensive Coordinator Zac Robinson.

In 2023, Black helped Rams quarterback Matthew Stafford complete 326-of-521 attempts (62.6 percent) for 3,965 yards, 24 touchdowns and 11 interceptions for a 92.5 passer rating and earn Pro Bowl honors for the second time in his career. Stafford ranked in the top 12 among quarterbacks in completions, passing yards and touchdown passes. Rams wide receiver Puka Nacua recorded the most receptions (105) and receiving yards (1,486) by a rookie in NFL history, earning second-team AP All-Pro and Pro Bowl honors. Nacua also set the NFL record for most receiving yards by a rookie in a playoff game in NFL history with 181 yards against Detroit.

As a coaching fellow during the 2022 season, Black played a pivotal role in the development of younger quarterbacks John Wolford and Bryce Perkins. During an injury-riddled season, both Wolford and Perkins saw playing time and made significant improvements while working with Black. Wolford started three games in place of an injured Stafford and threw for 390 yards and one touchdown. Perkins appeared in four games, starting one, and threw for 161 yards and a touchdown, while rushing for 90 yards.

Prior to joining the Rams, Black served as co-offensive coordinator and quarterbacks coach at Florida A&M. He joined the coaching staff at FAMU in 2019 as passing game coordinator and quarterbacks coach. Under Black's leadership, Rattlers quarterback Ryan Stanley threw for 2,566 yards in 2019, earning MEAC Offensive Player of the Year honors.

Black started his coaching career in 2011 at his alma mater, Prairie View A&M, where he served in a variety of roles including graduate assistant (2011-14), passing game coordinator/quarterbacks coach (2015-17) and tight ends coach (2018).

As a player, Black played quarterback at Western Kentucky University before transferring to Prairie View A&M, where he threw for 4,187 yards and 35 touchdowns over two seasons with the program. In 2009, he led the Panthers to the program's first SWAC Championship since 1964 and earned Offensive Player of the Year honors and Black College Player of the Year accolades.

Black and his wife, Erin, have two daughters, Peyton Dianne and Zoe Giselle.