Without wishing to offend our Celtic brothers, I don't see how playing against N. Ireland, Scotland, Wales and the Republic is going to improve the standard of our international football. We all play the same shit style of kick-and-rush, pace-and-power football with lots of bluster, very little skill and technique and zero focus on retaining possession.
In fact, having thought about the idea over the last few days, I think it would have the opposite effect and promote that style of shit football even more cos we'd probably win it and decide it's clearly the way forward.
An annual spanking off the likes of Germany, Spain and Holland would be much more useful. At least then our players might eventually figure out how international football should really be played.