I believe it was Endearvor that landed five days later than planed. This means the Columbia could have possibly stated in space until February 6th or possibly a little longer.
The next shuttle was schedule to launch March 1, 2003. That was 40 days later. If a forty day launch process had gone 24 hour instead of 8 hour shifts, we might have seen it launched in 12-15 days.
They knew the shuttle wing was suspect on 01/18. Add 12-15 days to that and it's 01/30-02/04.
This is what I've been trying to say from day one. Early adherance to can-do attitudes could have prevented this loss. IMO
Look, I realize this is conjecture. I don't think it's wild conjecture by any means.
Uh oh, after reading part of the thread, I'm afraid this may have a chance to have legs. :^)