'cause I'm not gonna lie, I've seen him totally phone in on Chitty. But, it's also possible that some of the stuff he does is so off-the-wall that Erin didn't know what to do with it until later, when they really seemed more used to each other.
I've found the understudies to play less depth to their characters, but I almost like that *better* in a weird way. Perhaps it's just some sort of clashing of two very strong actor personalities -- they're both so interpretive of really bland roles that it doesn't fly, no pun intended.
A work of art is an invitation to love.