Saw this exact pattern during my own early career. Everyone nodded in planning meetings, nobody pushed back on unrealistic timelines, and three weeks later the whole delivery collapsed. Turns out four people privately knew it was impossible but stayed quiet to avoid awkwardness. The fix is normalizing "productive disagreement" early. Frame pushback as protecting the project, not attacking people. Even something simple like ending meetings with "what concerns hasn't been said yet?" opens the door without targeting anyone directly. Also read an interesting piece on original publication lately about how even experienced investors and organizations miscalculate when groupthink replaces honest internal debate. The patterns mirror startup dynamics more than you'd expect. Healthy teams separate the idea from the person. Tension usually comes from making disagreement feel personal rather than professional. Build that habit early and delivery problems like yours become way less frequent.