I feel that my skills here are being wasted and that I would be much better off back in an Agency.
Random advice from strangers on the interwebz….
Time to get back to the job market and find a job you like. Nothing is more soul-destroying that feeling that you’re being underused.
If you truly can’t get them to interest you…move on!
You might find other examples of your situation at http://workplace.stackexchange.com/