Exercise 3: Combining Both Dysfunctions — Possible Solution
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SETUP
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    REPORTING_RATE = 0.3 (blame-focused - fewer new issues even get
    added to the backlog each retro), combined with venting-only
    (nothing tracked ever gets resolved once reported).

RESULT
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    Combined dysfunction (blame-focused reporting + venting-only):
      average final backlog = 6.01

    Comparison:
      Chapter's own venting-only alone (full reporting): 13
      Combined (blame-focused + venting-only): 6.01

A GENUINELY COUNTERINTUITIVE, IMPORTANT RESULT
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The combined-dysfunction backlog (6.01) is LOWER than the venting-only
backlog alone (13) - the opposite of what the chapter's own framing
("these two failures compound") might suggest at first glance. The
reason is structural, not a contradiction: blame-focused reporting
means fewer issues ever get ADDED to the visible backlog in the first
place, since team members simply don't report problems they'd be
blamed for. A smaller visible backlog here doesn't mean fewer real
problems - it means more of them never became visible at all.

WHY THIS WORKS AS AN ANSWER
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This is an important correction to reading "backlog size" as a direct
proxy for "how many real problems exist." The chapter's own claim that
the two dysfunctions "compound, not add" is about total organizational
harm, not about this specific visible metric - a team with a small,
blame-suppressed backlog is NOT in better shape than a team with a
large, honestly-reported one, even though the number on the board says
otherwise. The real damage of combining both dysfunctions is that the
team gets the worst of both outcomes simultaneously (unreported
problems AND no mechanism to fix the few that are reported) while
producing a backlog number that looks deceptively reassuring - arguably
a worse organizational outcome than either dysfunction alone, precisely
because it's harder to notice something is wrong at all.