When the Marlins hired Barry Bonds to serve as their hitting coach, they appeared to be confident he would have success in the role.
It might be too soon to determine whether or not Bonds has had an effect on Marlins hitters. But Don Mattingly's early opinion, according to Barry Jackson of The Miami Herald, is quite clear:
The Marlins are not even a month into the season, but it seems like Mattingly is under the impression Frank Menechino is doing a lot of the work.
Will that change? Time will tell.