I dont know about footwork but when pressure starts to crush the pocket dude starts to panic. he goes and throw one of those sidearm throws that are inaccurate as fukk.
you know how they say elite qbs know all routes and timing like clockwork ? well dudes mental clock resets the fukk up when he feels hes under pressure.
its the same shyt 49er fans (ie, me) always talk about with alex smith. except alex will just tuck it in and take a sack not even trying to do anything because hes so scared shytless of the pressure
stafford will go and make a horrendous throw to no one.