Why it did not solve it
Two explanations can fit the same symptom. The first is a communication gap: the teams need earlier discovery and a shared workspace. The second is a decision-model gap: they are measured on different outcomes and no one owns the trade-off between customer value and technical feasibility. More meetings may help the first case, but they will not solve the second. A counter-example matters: a team can disagree productively when decision ownership is clear; disagreement itself is not proof of misalignment.
The Push diagnosis
Start with one live product-engineering incident and map the claim each side was making, the evidence available at the time, the decision owner, and the escalation path. Then run one reversible experiment: for the next two weeks, hold a joint discovery review before roadmap commitment, write one shared outcome, record the unresolved trade-off, and give one named owner the call. Watch for fewer late feasibility surprises, less rework, and fewer decisions returning to the CTO or VP R&D. This diagnosis is in scope when leadership needs clearer decision rights and collaboration; it is not the answer when the core issue is missing product evidence, a staffing constraint, or a technical architecture decision that requires specialist work. The Push applies this reasoning through 1:1 coaching and advisory work rather than imposing a fixed process.