'Office' Star Jenna Fischer on Chrissy Teigen's Jim & Pam Divorce Theory

Chrissy Teigen thinks Jim Halpert and Pam Beesly are definitely dunzo after getting married 10 years ago -- but Pammy herself is all like, whoa, whoa ... that's just what she said. Yep, we ran into Jenna Fischer as she left the "Today" show in NYC…