Darrell Bevell still in midst of constructing Lions offense

DETROIT – Darrell Bevell’s first week here was about as miserable as it gets – but it had nothing to do with the job he took as the Detroit Lions offensive coordinator. He was stoked about that. What was happening outside the team’s practice facility – not so much.

“During my first week was the polar vortex,” Bevell said Monday night during the franchise’s season ticket member summit. “So that wasn’t the best week to be here.”

Not on the outside – the weather nightmare was so bad some Michigan communities were asked to make sure their heat was lowered to certain temperatures – but on the inside it gave Bevell all the chances he needed to warm up.

Bevell, 49, has spent much of his time figuring…