I'll give my opinion on Gettleman after the season not before.
I don't see how this season goes will reflect on Gettleman sans how our draft picks perform. Not like there is much he can do to really change up the talent THAT much on this team.
Neverless, I like what he's doing. He clearly is aware of our major weakness on the team (secondary) and while these guys aren't going to light it up, they are great for depth and Captain in particular played awesome as our nickel last season. I think it is clear he is aware a team needs depth to be successful and he's doing it at our weakest point.
I'm not going to judge him, of course. That is a wait and see approach. We won't really truly know until the 2nd/3rd offseason unless this years draft picks totally bomb. But these moves have been great considering what he's working with.