Issue trackers have substitutability. Not much maybe, but certainly some. As less pompous way of putting this, is to say 'if they don't buy this one, they'll bu

Issue trackers have substitutability. Not much maybe, but certainly some. As less pompous way of putting this, is to say 'if they don't buy this one, they'll buy another'. Yet another way is saying 'buyer BATNA is buying another product'.