The likes of Rankin, Joyce, Morgan, Bray are all examples of the top quality cricketers coming through but Ireland NEED test status if they are to stop the flow of good Irish talent to other nations. I doubt england would have even made the semi finals of the T20 is morgan wasnt in the line-up. I agree Ireland need to improve infrastructure but that needs money, which comes from doing well in tournaments and playing more matches, which gets you noticed by the ad men etc and this can only happen if you have all the players available.
You talk about beating Zimbabwe, but they were going to do that in the 07 WC, if rain hadnt stopped play. That was 3 years ago, and Ireland have improved massively since then