I didn't realize just how little Marchan actually played last year tbh. Only 30 starts. Stubbs had 47 the year before, and that was with Marchan also making 14 (due to JT's injury).
But regardless, there is almost no difference between the two players. We'd like to believe Marchan has another level as a hitter and might also be better overall given the age difference, but we haven't actually seen it, nor do we know how durable Marchan is (well, we know he isn't durable, when asked to play more at other levels). He is obviously still the guy you go with as the back-up, and Stubbs is almost surely going to be in LV.
Spring training is kind of boring and all our good players are at the WBC so Thomson gave us something to talk about with a bit of throwaway information. Last year it was Sosa playing the OF, which did actually happen, but not for long. .