49ers Pre/Post October 12, 2020 12:22 pm Donte Whitner challenges 49ers' Robert Saleh to earn his paycheck Donte Whitner says anybody can be a successful coach with elite pass rushers like Nick Bosa and challenged 49ers defensive coordinator Robert Saleh to win without his stars. 49ers videos 1:21 Can the 49ers keep both Aiyuk, Samuel? 3:57 Fourth-round draft pick Cowing excited to build chemistry with Purdy 6:45 Fourth-round draft pick Guerendo ready to learn from 49ers' backfield 1:25 Watch 49ers fourth-round draft pick Jacob Cowing's college highlights 5:28 Fourth-round draft pick Mustapha brings ‘tenacity' to 49ers' secondary