When Pigs Become Chickens

I received and interesting question, somebody asked me about some reasons why a pig might become a chicken I can think in a few:

1. The pig is a low performer and she is as productive as a chicken
2. The pig's motivation is so low that she acts like a chicken
3. The staff was reduced and we have less pigs or some were reassigned to other projects but still play chicken's role in our
4. Part time engineers that switch among projects and don't really contribute to any
5. Upper managers who like to play pig's role but run away when they have to get their hands dirty with complicated tasks