Some executive committees are run by division and vote gathering, some by consensus, and others use a mix of the two.
A good meeting allows every member to have a say, and a decision is reached for each issue. This may lead to a vote. One way to structure your executive committee is to have an odd number of members. This means that assuming all attend and none abstain from voting you will not have a tie (which is the same as no decision).
However, forcing a yes or no vote for a non-unanimous resolution can create division and disharmony between your executive committee members and result in unpleasant and uninspiring meetings. Most decisions are not so urgent as to require a decision vote if most of executive committee members are not unanimous. If there are strong objections then it may be best to gather further information and direction to be considered over a period of time. Of course if the decision is urgent then the answer is often a foregone conclusion as something needs to be done now. In these urgent instances there may be differing opinions about things like a supplier or the type of fix needed, but generally getting and reviewing three quotes will resolve these.