The screenplay for The Pacific was a composite of Sledge's 'At Peleiu and Okinawa', Leckie's 'Helmet for My Pillow' and an account of Joe Basilone, who became an early celebrity of war due to heroism and lost his life on Iwo Jima.
I do agree that a series on the Navy is missing but it may be difficult to do this without serious overlap of what was presented in The Pacific, especially as the Marine Corps is a division of the Navy. There is Midway (examined almost to a fault in the remake), Coral Sea, Phillipine Sea and Leyte Gulf that can be presented, almost entirely from the perspectives of the ship crews and submarines, but this may be difficult to present outside of documentary form. The approach they have taken was from multiple personal perspectives.
I am however an enormous fan of all of this.