One of the main reasons is that the team is over committed. An important move is to draw a line in the sand. After that line, you will reestimate your current w

One of the main reasons is that the team is over committed. An important move is to draw a line in the sand. After that line, you will reestimate your current work to include learning and quality built in (lots of slack time). Until that line, figure out what you CAN finish, and only commit to that. Yes, this involves having a sincere talk with your peers and leaders, something we are usually shying away from doing, but is an important part of making everyone see the same reality that you see. It's not easy. It just works. I write more about these at 5whys.com