Why are WR in the slot covered by non-CBs in American football?

The slot receiver is typically lined up behind the line of scrimmage and inside another receiver Jamison Crowder plays this role for the Jets

In football, a slot is a specific wide receiver position that lines up slightly in the backfield off of the line of scrimmage While Slot receivers share

what are the odds on slot machines WR Film: RECEIVER PRESS RELEASE HAND TECHNIQUE First Down Slot Receiver

what slot machines have the best odds of winning Slot receivers have more space to manipulate defenders and more freedom to attack angles and use change of speed This is why great slot