1) Underestimating the complexity of the problem 2) Closing down a project as soon as the o/p pops out without thinking about scalability 3) Lack of courage t

1) Underestimating the complexity of the problem 2) Closing down a project as soon as the o/p pops out without thinking about scalability 3) Lack of courage to say 'NO' to the client 4) Highly optimistic deadline 5) Daily meetings to ask how much work has been completed. Give me a percentage.