silentstriker
The Wheel is Forever
Then the considerations would purely be commercial. You wouldn't get many tours even if at some point BD became decent.Test cricket doesn't need official tiers, it just needs to do away with the future tours program whereby everyone has to play everyone else every four (or five or whatever) years. Let Bangladesh play test cricket, but in England in the early summer? Not so much. Ended up as little more than a training hit out when the cloud cover came to OT.
IMO tiers are a better option, if we're going to have anything at all.