The formula of Trust + Intimacy + Credibility is solid, but I'd add: solve one painful problem first, then earn the right to propose architectural changes. Ship something valuable in the first month, even if it's not perfect. That builds more credibility than any presentation.
The formula of Trust + Intimacy + Credibility is solid, but I'd add: solve one painful problem first, then earn the right to propose architectural changes. Ship something valuable in the first month, even if it's not perfect. That builds more credibility than any presentation.