What if Hillary had skipped Iowa?

[Trilobyte]

Remember early in the campaign, there was a leaked memo from the Clinton campaign advising it to skip the Iowa caucus. What would have happened if Hillary followed that advice?

[Verily]

Given the early polling, I suspect Obama would have also skipped Iowa, which would have meant it would be essentially irrelevant, as in 1992.

[True Democrat]

Perhaps Vilsack would still be in the race, which means a win in Iowa for him would mean Hillary clinches the nomination.