The "experts" would tell you it's impossible to approach a big mature whitetail buck by walking him up, or still hunting . That's just BS.
And two still hunting together and staying about 50yards or so apart can fool more than a few. The experts probably think two would make make too much noise to even have a remote chance.
A little noise can be your friend if you are trying to tag team them.
That's exactly how my son got his bear this year. We were about 50-60 yards apart, working a steep, laurel choked, side hill. He was above me and shot it at 10 yards!