I think that the 5 day format should be introduced purely for the non test playing nations .
I mean this method of picking and chosing minnows after they win one odd one dayer is not a good method at all . Minnows should be exposed to the longer version to learn the skills . And also the tours and tournamanets should be arranged properly and not just certain trophies or tournaments be given attention .
For example Namibia visiting Holland
5 one dayers and 2 tests ....