NFL quarterbacks are under more pressure than ever from rushers. Why?

Despite all the advantages offenses have secured over the years, defenses are better at pressuring the QB than any other time in recent historyThe Baltimore Ravens are preparing to start their fourth quarterback this year, Jacoby Brissett, against the beleaguered Los Angeles Chargers on Monday, because of injuries to Lamar Jackson, Tyler Huntley and Joe Fagnano. That puts them dangerously…