Ahmad
You may not know this, but Ahmad Shah was recruited from Kabul university and was among the most promising assets - especially during the Panjshiri rebellion during the time of Daud.
Anyway, I think we will have to disagree about who decided to go his own way (with a little help from the French and the English - and a certain Polish company and Emeralds from Panjshir)
Always remember that Afghanistan, it's personalities, events and foreign players and motivations are not news for us - we follow them with the interest of those who seek to defend themselves.
The longer a single geographically located ethnic group continues to call the shots (backed by ISAF) the longer the disarray in Afghanistan lasts - Things can change in a day, by a single decision, so it may not be a good idea to imagine that hostility will continue to pay dividends.