Despite the Sun-Times' Mike Kiley and the Tribune's Paul Sullivan asserting without a stated source that Neifi Perez was ahead of Todd Walker on the Cubs' depth chart, the man in charge says otherwise. At least while Walker is on the team:

For those who can't make the convention this weekend, here is how Baker will answer the tough questions from fans, gleaned from Thursday's gathering:
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Q Speaking of trades, who's your starting second baseman, Neifi Perez or Todd Walker?

A Right now Todd Walker is our second baseman. He's here. I've heard a lot of speculation [about a trade], but right now we have about 10 weeks before we start. Let us do our thing and we'll be ready by Opening Day.