No when it comes to predicting future performance.
Also,
Cotts career ERA = 4.05
FIP = 4.25
xFIP = 4.08
I don't even know what you're talking about. You always write these lines and lines of text which never seem to surround any convincing, thoughtful points. I think you should try to be more concise, more thoughtful, and more researched. To be honest it just seems like you type a mini-essay based on what's at the front of your mind, right or wrong.