(I'm probably one of the worst people to comment on this but I will anyways)
Tenz has a decent agent pool, but it lacks a little firmness(which sounds weird but bare with me). All his agents are really flexible in their roles, being able to switch play style pretty easily. In that thought, I believe he would benefit from at least experimenting with agents such as Cypher, Viper, KJ, and even Astra or Brimstone. Those agents do have flexibility but they have some pretty straight forward, solid uses that are guaranteed some form of value. If he were to learn at least their play styles, it would give him more ways to play other agents to catch people off-guard.
Just my take, shit on me all y'all want