In hour 4 of The Drive, Zach and Phil take a dive into the Broncos upcoming joint practice with the 49ers and the past drama between coaches in Denver and San Francisco. We react to Matthew Berry sharing that a “high ranking” member of the Chiefs saying the Broncos are on alert of the Broncos. Have the Broncos proved enough to be on a similar tier as the Chiefs? Between the Ravens, Bills and Chiefs who would the guys feel best about the Broncos winning a road playoff game against? What do the guys make of the first unofficial depth chart put out by the Broncos? We wrap up the show with DenverSports.com’s Will Petersen joining the show with what we are looking for out at the Broncos joint practice tomorrow.