I think Gazi has the ability to be a quite handy with the bat. His defense and technique is even more copact than Abul who occaisionally does look like a #10. Gazi looks like a middle order batsman. I think both men can average 20+ with the bat by the end of their careers.
Bangladesh is a stronger team with Shakib al Hasan.
Bangladesh is a stronger team without Shakib al Hasan.