No idea who talked Vin Diesel into doing this film, probably (and hopefully) Disney offered him a bucket load of money for this part because this was absolute trash. While I realize I'm not at all the target audience for this kind of film, I do hope general standards for kids films are a bit higher than this.
It seems all brawny men must at least make one of these, The Pacifier fits right in with Johnson's Tooth Fairy or Schwarzenegger's Kindergarten Cop. Diesel is a Seal who needs to babysit a bunch of kids for an undercover assignment. He's not babysitter material and the kids aren't really taking to him either. Supposed hilarity ensues.
This is meant to be a comedy with some action/adventure bits thrown in for good measure, the problem is that the film is never funny, while the action is really childish and subpar. Somehow it made a lot of money at the box office, so I'm sure there's an audience for this, but it sure it ain't me. Ugh.