- unclear specs - context switching - peer review (both giving & receiving) - code review - status meetings - waiting for others to show up at meetings - others not prepared for meetings (no agenda, etc.) - unnecessary but enforced standards (stupid, pointless) - programs locked by other devs (get in line) - pre-existing technical debt (must be fixed before amended) - framework can't handle it - works but won't scale - can't recreate bug - platform issue (server, DBMS, etc.) - environmental issues (test server out of date) - waiting for server resources (testing) - waiting for regression tester - waiting for user acceptance testing - specs changing during user acceptance testing - uncontrolled deployment "freezes" (month-end, release schedule) - noisy office - meetings when emails would have sufficed - phone calls when emails would have sufficed - text messages when emails would have sufficed - continually changing priorities - delays in offshore communications - lack of training (technology) - lack of training (business subject matter) - too much training (HR bullshit) - not enough donuts