Romo completes passes, Tebow doesn’t. That’s why Romo keeps being given opportunities. Tebow’s probably gotten more opportunities than his completion percentage deserves.
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As if that’s the only stat that counts.
It’s a big one. When you complete less than 50% of your passes any other positive stat you have is considered a fluke. The job of a QB is to complete passes, if they do that everything else will follow.