It's early so it's all speculation, but if Brown stays on the course he is reportedly on, he could end up being the nickel backer alongside Kiko meaning he'll see a decent amount of playing time. Ideally, if Brown plays well and gets better as the year goes on, next year he could be a starting 3 down MLB for us. Spikes has struggled against the pass and generally comes off the field in passing situations so if the tradeoff is a guy who isn't quite as good against the run but can play both run and pass pretty well, I'd take that every time.