in our health lead, the cdc is trying to hit the refresh button after a series of cringy, confusing guidance amid the surge of the omicron variant. as gabe cohen reports for us, the agency's direct sor under such intense pressure to get it right, she hired a media trainer to help her with her communications skills. >> as we've articulated, cdc is working on updated guidance. >> reporter: dr. rochelle walensky facing renewed criticism from within the white house and her own agency. after yet another guidance gaffe. a source telling cnn that cdc scientists are increasingly frustrated with walensky's handling of guidance and between her circumventing their vetting process for guidelines and the public criticism, morale at the agency is sinking. >> it really had a lot to do with what we thought people would be able to tolerate. >> reporter: it comes after the cdc cut the covid isolation