Before I get into this, I need to make it clear that I am not worried about Tanner Bibee. I have no doubt that the issues I am pointing out will be remedied sooner rather than later.
Tanner Bibee so far in 2025 has seen an 8 point drop in whiff% taking him from the 61st percentile in 2024 down to the 17th in 2025. He is getting about 7% less chase as well, though that was never his strong suit. These two factors have brought his K% down 10 points from the 74th percentile all the way down to the 15th.