I'm a big advocate for teamwork as well (in fact I've got a big piece I did for multiplesandmore.blogspot.com that is posting in the next few weeks regarding this very topic).  There are too many dads out there who don't see themselves as an equal partner in the process.  My wife teaches yoga at nights so I tend to get the evening shift (she's a stay at home during the day) and that's more than fair.  If she can do it, I can do it - I should WANT to do it as well.  I like to say that parenting these days is a team sport; no longer the indivdual athlete and the cheerleader/spectator of decades past.