PLEASE, Andy, Hollins has done nothing but get open and catch pretty much everything that is throw his way. PLUS be an asset in the run and screen games. Now I don't doubt Williams' potential or skills, it's just that at this moment, the guys in front of him are doing the job well and Hollins can do more than just catch the ball, though in the last few games he's been catching the ball a good clip too.
Don't worry. I'm sure he'll get his shot eventually through injury or his skills being necessary for a particular game plan. Meanwhile he'll get his 15-20 reps/g and hope Maye looks his way.