Courtney, the T-45C (which was the glass cockpit mod) is a good enough jet trainer ... but it's had a few bugs over the years. (Steering being one of them, IIRC nose wheel steering, I think that finally got resolved in the 00's. )
If the Navy is going to send Marines and Navy pilots to the F-35B from the T-45C, what is it about the "T-X" that is so compelling? Granted, the USN has had an eye on the T-X (45 replacement) for a while ...