Bridges are best crossed before being burnt. It is also best if you can to leave on good terms to prevent rumours and snide references to you which may be to potential future employers. On the other hand if you are not happy you must make plans to stay. A time to point out maybe when they complain about paper that the reason you went to the school was the promise of resources.
Then look and find before you jump.  Best offers come when you are employed.  You could maybe get one and then give the notice.