Presentation skills matter

"After a bit of banter and passionate pitch from Mark, we bought it. Talk about changing your mind about something because of a good presentation and a lot of passion. ... I walked into the meeting thinking - this guy's outta here - and walked out thinking - isn't this neat ?"
- Jack Welch in Jack, Straight From The Gut

My take :
Presentation skills make a big difference to the outcomes. Passion and level of preparedness should make themselves apparent in the presentation.