Sounds like the military is in a bit of a pickle. Even if the F-22 can dogfight God and all his angels, at the current inventory and with the apparent readiness rate/logistics issues that isn't going to cut the mustard. The JSF is an air to ground specialist with its on issues, and all the teen era fighters are feeling their age and are no longer superior to their Russian counterparts. I assume we still have an edge in training and AWACs/Electronics/Coordination in order to stay ahead with the equipment we have but still thats pretty FUMTU. I don't suppose they can update the bejesus out of some of the teen era designs and build new airframes?
It will be interesting to see what comes out of it, I don't think we can expect F-15Es and Vipers to carry the load by themselves.
They are indeed in a bit of a pickle.
The biggest problem is once again that the Su-27 variants now available for export from Russia are now better than the F-15 is 1 v 1 assuming the full package of electronics and missiles and assuming the pilot is better. But lets take the pilot out of the discussion for now.
Also Western doctrine tends to assume a disadvantage in numbers can be counter balanced by an advantage in capability (through technology mostly although tactics too). The F-15 was that advantage in capability and its still quite good but its starting to be overtaken.
The F-35 is not actually a strictly purpose built strike fighter as it was designed largely to be a F-16 replacement (with aspects of the Harrier incorporated as well). The F-16 came about because the F-15 was expensive so a cheaper model was needed too. The F-22 and the F-35 share a similar position. The trouble is the the F-35 introduces a slew of new capabilities and technologies but its performance is anticipated to be at the F-16 level and possibly not quite as good in some of the really close in dogfighting capabilities. Its stealthier, its sensors are incredible, but its also heavier with greater wing loading, and has a similar range (which is not as good as the F-15, F-22, Su-27, etc.). So the worry is that a F-35 and a Su-27 in a close in battle will see the F-35 loose most of its advantage with the more agile Su-27.