In my experience if you have a situation where an increasing number of developers are going "negative" the core of your problem is not a single "negative" devel

In my experience if you have a situation where an increasing number of developers are going "negative" the core of your problem is not a single "negative" developer who started it but rather something else is very wrong with your organization, usually terrible management or just bad company vision and the person you pin as the "negative" developer was simply the first to catch on. I will admit there are certainly developers with naturally bad attitudes, but I've never seen their attitude spread unless there was something very wrong with the company to begin with.