Simple. Get Sentinels an entry fragger so Tenz doesn't have to die while getting 50% of their first kills.
Yay is great. He has Victor to entry.
Bdog is great. He has Mada to entry.
Cryo is great. He has Zekken to entry.
Corey and Seven switch around and do both.
Dicey is great. He has Babybay to entry.
Will is great, he has Asuna to entry with him.
Tenz has to entry, get the first kill, stay alive, and then clutch it for his team. He has the second-most first deaths per round but still has the second-highest clutch % in NA. He performed when he was not forced in a position to get 1 kill or lose the round for his entire team instantly.
This is honestly the only solution. Give him a teammate who can get the first kill, put them in an advantage (which they are the second-best NA when in a 5v4), and let tenz thrive afterward where he is all the more lethal.