To avoid friction, Vaynerchuk advises partners to operate like an offense and defensive coordinator. Each partner should have clear ownership over their domain. While they can communicate and bounce ideas off each other, the final decision in a specific area rests with the designated leader for that function. This 'divide and conquer' approach prevents having 'two cooks in the kitchen'.

Don't default to a 50/50 split on day one. Instead, agree to formally discuss equity only after reaching a predefined milestone, like $10,000 in revenue. This allows you to base the split on demonstrated contribution and commitment, avoiding the resentment from premature, misaligned agreements.

When an experienced founder starts a new venture based on their own vision, the equity split doesn't need to be 50/50. By framing it as 'my deal,' the primary founder can retain a supermajority (e.g., 80%) while giving a technical co-founder a smaller but still meaningful stake.

The Artemis co-founders maintain high velocity by minimizing disagreements. When they have differing opinions, the person who has thought less deeply about the specific issue defers to the one with more context. This is built on a foundation of mutual trust and recognizing most decisions are reversible.

Successful family businesses prioritize relationships over financial gain. Operationally, they avoid conflict by assigning distinct roles ('dividing and conquering') rather than attempting to make all major decisions jointly, which inevitably leads to friction and gridlock.

For data-less decisions, PhonePe's co-founders have a simple rule: the partner with deeper historical strength in that domain makes the final call. The other commits fully, and they never revisit the decision, ensuring they learn and move forward without blame.

A 50/50 equity split should not be the default. The conversation must focus on what unique, "unfair advantages" each founder brings to the table. This could be a significant pre-built audience, a deep professional network, or personal capital. The idea itself is rarely worth any equity.

To preserve their friendship while building a business, Ben and Jerry established two rules: 1) If one person felt strongly about a decision, they got their way. 2) Each co-founder had veto power. This simple framework for resolving disagreements enabled their long-term success as partners.

The founders credit their successful partnership to an equal commitment to hard work. By dividing responsibilities and working independently before collaborating ('divide and conquer'), they ensure an even playing field and avoid the common pitfalls of co-founder burnout or resentment that often ruin business friendships.