Caleb Williams was the No. 1 overall pick by the Chicago Bears for a reason, just go look at his college tape at USC and Oklahoma. But learning the Bears’ offensive system has been a bit of an adjustment, according to ESPN’s Jeremy Fowler. Now, Williams is still showcasing the abilities that made him a can’t-miss prospect. So think of minicamp and OTAs as a bit of an experiment while he grasps different NFL concepts. “So the word out of Chicago for the people I’ve talked to is that Caleb Williams used his strong arm for what he should use it for in minicamp and OTAs, which is to test it out,” …