Bill Wyman was the upright Bass player. Strange set up.
Also, look at the way George Harrison always played and hardly moved his legs. When my Nephew played George Harrison in the FAB Beatles, he had to learn the stance which was mostly looking down and shy.
FAB beatles did quite well and he played for about 8 years but not able to make a decent living from it. It was a full time job for the group due to travelling around a lot including weddings in Europe. He was a bit tubby to look like George but certainly plays lead guitar well.On youtube videos