New Broncos backup QB Jeff Driskel looking forward to serving as support system for Drew Lock

Gary Landers, Associated Press fileNo sooner had Broncos backup quarterback Jeff Driskel signed his two-year contract that a FedEx box containing the team’s playbook arrived at his home in the Orlando, Fla., area.

And now the interesting part: Learning offensive coordinator Pat Shurmur’s system through self-study.

The COVID-19 virus pandemic has shuttered the NFL’s doors, making it unlikely the Broncos will start their offseason program April 20.

“It’s difficult,” Driskel said during a media conference call Thursday. “It will be the whole league — we’ll all be on the same, level playing field. But I’ve learned enough offenses at this point that I can dive into a playbook and study and learn it…