John Elway knew this would happen.



After trading up to draft Drew Lock in the second round of the draft, the questions of when his training as “the future” would start were asked almost immediately.



Lock, the quarterback Elway had eyed throughout the pre-draft process, arrived in Denver after a four-year career in Missouri’s spread offense. His transition to the Broncos’ offense — an updated version of Mike Shanahan’s system — would take time, from the tiniest details such as his study habits and footwork to the bigger concepts of the offense.



It was paramount, Elway stressed then, that the Broncos remain patient with his development and not rush it.



“We believe he has a ton of talent, but we also believe he has a lot left to work on,” he said in April. “… When we look at it, we’re hoping Drew is the future. But Joe (Flacco) is the starter, is going to be the starter and...