Do I Need a Second Dose of Yeast?

[piernas]

So I'm planning on doing a half batch of the Chimay Blue clone recipe from Beer Captured in my 5 gallon secondary. I'm planning on just using the 5 gallon as the primary, leaving it in there for a few weeks, and then bottling it (no secondary). I noticed that the recipe calls to pitch a second dose of yeast 3 days before bottling, and I'm wondering if this will be necessary. I think I might get some dry yeast b/c it'll be easier to split up, and I'm wondering if I should pitch half after adding the wort to the carboy and half a few days before bottling, or if should just pitch the whole packet at the start and let it do its thing.