You have explained that you are looking for a sales executive who is able to effectively manage over a dozen employees. In my 15 years of experience as a sales manager, I have developed strong motivational and team-building skills. I was twice awarded manager-of-the-year for my innovative strategies for motivating employees to meet and surpass quarterly deadlines. If hired, I will apply my leadership abilities and strategies to achieve profit gains in this position.
If you are currently employed, you should be honest about the start date and show professionalism. You should tell them you would have to discuss a transition with your current company to see if they require a two-week notice (or some other timing). If you currently have a critical role, your potential new employer would expect a transition period.
Any candidate can read and regurgitate the company’s “About” page. So, when interviewers ask this, they aren't necessarily trying to gauge whether you understand the mission—they want to know whether you care about it. Start with one line that shows you understand the company's goals, using a couple key words and phrases from the website, but then go on to make it personal. Say, “I’m personally drawn to this mission because…” or “I really believe in this approach because…” and share a personal example or two.