Steelers Add Veteran Strength Coaches Mark Lovat, Grant Thorne to Mike McCarthy’s Staff

The Pittsburgh Steelers’ offseason overhaul extended beyond play-calling and positional coaches this week, reaching into the foundation of the organization’s performance staff. As Mike McCarthy begins his first year leading the franchise, he has added veteran strength coach Mark Lovat, a longtime Green Bay Packers fixture, to the team’s conditioning department. The move signals a clear emphasis on experience and familiarity as McCarthy reconstructs the coaching environment around him.

Lovat’s arrival reconnects him with McCarthy after more than two decades of shared history in Green Bay. Known for his steady presence and methodical approach to player conditioning, Lovat built a reputation as a trusted figure behind the scenes during the Packers’ most successful stretches, including a Super Bowl run and multiple playoff appearances. His background suggests Pittsburgh is targeting continuity and proven methods rather than experimentation.

The hire also reflects broader change within the Steelers organization. Following another early playoff exit and Mike Tomlin’s unexpected decision to step down, the franchise entered the offseason with a mandate to reset both culture and preparation. That has meant not only adding coordinators and position coaches but strengthening the infrastructure that supports players year-round.

Alongside Lovat, Pittsburgh brought in Grant Thorne, another coach with Packers and Titans experience. While their exact responsibilities remain unclear, the dual additions hint at a potential reshuffle of the team’s strength and conditioning staff as McCarthy installs trusted personnel and reshapes the program to fit his philosophy.

1. Reuniting With a Trusted Hand

Lovat’s career spans more than a quarter-century with the Packers, where he developed into one of the league’s most respected strength and conditioning voices. He spent years climbing the ranks, beginning as an assistant before eventually taking over as coordinator. His tenure overlapped with some of the franchise’s most productive seasons, giving him extensive experience managing veteran stars and young players alike. From 2010 to 2018, he served as Green Bay’s strength and conditioning coordinator, working closely with then-head coach McCarthy and quarterback Aaron Rodgers. Lovat’s work during that period earned league recognition, including a strength coach of the year honor in 2011. Players and coaches often credited him for blending science-based training with practical, football-specific demands. After leaving Green Bay, Lovat joined the Tennessee Titans as an assistant strength and conditioning coach for the past two seasons. That stint allowed him to stay current with evolving sports performance methods while broadening his experience in another NFL system. Now, his move to Pittsburgh reunites him with a familiar leadership style under McCarthy. The connection is not merely professional. Lovat has strong ties to Pennsylvania, holding a master’s degree in exercise science and performance enhancement from California University of Pennsylvania. The regional link, combined with his decades of NFL experience, makes the transition to Pittsburgh a natural next step.

2. Doubling Down on Experience

Thorne’s hiring gives Pittsburgh another seasoned coach who has walked a similar path through Green Bay and Tennessee. He spent a decade with the Packers organization before following a comparable route to the Titans, mirroring Lovat’s trajectory. The shared history suggests McCarthy is intentionally rebuilding a performance team built on trust and familiarity. Before entering the NFL ranks full time, Thorne played college football at Long Beach City College and Nicholls State. He later gained experience across multiple levels of the sport, including a role with the New York Jets and time as a sports performance coach at Purdue after an earlier stint at Stanford. That diverse résumé adds a broader developmental perspective to the Steelers’ staff. Bringing in both Lovat and Thorne could allow Pittsburgh to divide responsibilities more strategically, whether through specialized roles or a co-leadership structure. Their experience working with elite professional athletes may help streamline offseason preparation and injury prevention efforts—two areas teams increasingly prioritize. Though the franchise has not announced official titles, the expectation is that at least one of the two will take on a prominent leadership position within the department. Their combined experience offers flexibility as the organization determines how best to structure the group.

3. A Franchise in Transition

The strength staff additions are part of a larger transformation inside the Steelers’ building. Tomlin’s decision to step away after nine consecutive first-round playoff exits surprised many within the league, marking the end of an era defined by stability but capped by postseason frustration. His parting message—that the team “deserves better”—underscored the need for change. McCarthy has wasted little time putting his stamp on the operation. He has already hired James Campen as offensive line coach, Patrick Graham as defensive coordinator, and Scott Tolzien to oversee the offense. The front office has also interviewed additional candidates, signaling a comprehensive rebuild rather than incremental tweaks. Within that context, performance staff hires take on added importance. Conditioning programs influence everything from practice tempo to late-season durability, and new leadership often seeks trusted personnel who understand their expectations. McCarthy’s familiarity with both Lovat and Thorne likely reduces the adjustment period as players adapt to new systems. For the Steelers, the goal is clear: pair experienced coaching with improved preparation in hopes of translating regular-season consistency into deeper playoff runs. If the behind-the-scenes structure improves, the on-field results may follow.