Chicago Bears quarterback Caleb Williams spent his first month in the NFL alternating between showing brief flashes that made him the Heisman Trophy winner and a No. 1 overall pick and a rookie dealing with the NFL’s unforgiving learning curve.

Five weeks into his career, Williams played his best and most complete game in Sunday’s 36-10 win against Carolina.

Some caveats apply. The Panthers are a lowly 1-4, and their defense remains one of the worst against the pass in the NFL. And yet,…