#3: Stay retired: Kevin Nash
With a near-year long reign as WWF Champion, and one of the founding members of the New World Order, Kevin Nash earned his spot in the WWE Hall of Fame, when he was inducted in 2015.
Despite being an accomplished star, Nash was never the best wrestler, often helped to better matches by opponents like Bret Hart, Shawn Michaels and The Undertaker, but made up for this on the mic.
Aged 60 years old, Nash isn't the oldest person on this list, but his series of torn quads does make him a liability in the ring in 2019.
At this point, he has little to nothing of value to contribute between the ropes, and could risk derailing younger stars, as arguably happened when he got involved with CM Punk in 2011.