Matt Maiocco and Jennifer Lee Chan break down how the 49ers' free-agent additions will fill specific roles on the defensive line, the significance of Arik Armstead's post-June 1 release designation and why Kyle Juszczyk sticking with San Francisco is so important.(1:46) 49ers designate Armstead as post-June 1 release(7:48) Juszczyk agrees to restructured deal with 49ers(14:50) Looking at 49ers personnel behind the scenes(18:30) How will the 49ers' free-agent additions fit in?(22:36) 49ers, Givens agree to one-year contractSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.