Originally both Jett mains for their respective tier 1 teams, SEN and NRG.
After franchising...
s0m: Was integrated into the optic core, was rough around the edges and made some mistakes with his smokes at the start, but through FNS and Chet's guidance, he developed well beyond the jett main he originally was into a top smokes player internationally that is well attuned to the optic core's system.
TenZ: always been on an experimenting team. Had no guidance from a consistent core or IGL to improve with. Was forced to always be learning through trial and error as every iteration of his team looked for a style that worked for them, his only victories incentivized the idea that the only way to close the gap between his and other teams is by crutching on his and his team's firepower
The blame isn't on any player as to why TenZ turned out this way imo, the blame is on Sentinels as an org for having such a rotating roster