Giuliani strategy

Today Obama swept Maryland, DC and Virginia building on his momentum. The Clinton campaign rightly points out that there are still the big states of Ohio and Texas to come, and I believe she is polling well in those states. But doesn't this 9th inning grand slam strategy sound familiar. When Giuliani decided to cede the early states, as Sen. Clinton now seems to be doing in upcoming states like Wisconsin, he saw his chances in Florida evaporate because he had lost momentum. I wonder if the strategy will work better for her.