The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.NEW YORK ( TheStreet) --Monnet's original conception for the European Common Market sounded sensible. As separate nations, we have little power, but together, we will be a significant global/political force. However, as is often the case, the devil is in the details. The eurozone, with a single central bank and currency, is a subset of the European Common Market conception. It is not working out for at least four of its 17 members. The euro leaders are currently engaged in a dance that will ultimately mean nothing. In the first part of this two-part series, I will explain why. In the next piece, I will get into the details of how these four countries can and should leave.