Not always, I remember when Zmarzlik was at reserve for Gorzow and they still couldn't beat a Zielona side containing Andreas Jonsson, Jonas Davidsson and Pepe P.
From my observations of watching the Polish league, I would get rid of Iversen.
Bring in Sayfudinov or Grigory Laguta.
I think both of the above would suit the Showground track.
The only reason I can think that Gorzow is not using Jack Holder is one of finance.
Do clubs have to pay guest fees to their parent clubs?
I know Torun were earning a lot of money from Wroclaw and Gorzow for the use of the Holder brothers.