No, but they should drill it into Gibbons' head that almost as a rule, a few of these guys should never face a lineup for the 3rd time.
I don't think it's fair to call the rotation a bunch of 4's and 5's either. Dickey is certainly still an above average pitcher. Estrada and Stroman pitched like 2's last year. Happ pitched like a well above average pitcher last year.
When I think of #4/5 SP, I think of guys like Danks, Gee, Guthrie, Harang, Big Pasta, and Tom Koehler that might be able to give you 1 WAR if they throw 25+ games.