Hill vs Siemian why is there a debate?

dtc said
Clearly I have no concrete proof, but my bet is he returns to joker and Seimian starts from here on out unless he stinks. And I say that because I think we are a better team with TH as the joker and another QB taking snaps not only because I think Taysom is not a good QB, but because to win our team needs options on offense and he is a great and unique option that might help us continue to win despite having our QB out and a clown circus as WRs.
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Why is no one accounting for the fact that the Saints might not want to play him as the joker the rest of the year because then they'd probably lose Taysom in 22 as he chases his dream? I think they'd lean toward giving Taysom another shot at QB1 to ensure keeping him a Saint.