Why? None of the three you named are of first grade standard.
Parra have plenty of good PL forwards but few that are capable of the big step up to first grade. The only good young forward last year was Backho but he left.
You can get rid of Oake, Perenara, Lewis, Hauraki, Afamasaga & Mateo - none are capable of holding down a permanent spot in first grade. Morrison is leaving, and he's a loss and hopefully, Stringer, Peek & Cannings are gone.
Keep Cordoba as a PL player who can fill in occassionally. There is noone in JF that shows potential, hopefully some of the Ball forwards will make amrk in the second half of the season.
Lots of cash to sign 2-3 first grade standard forwards and a couple of young ones to develop
Next priority is a half back. Tim Smith has been one of the poorer perfoprmers all year and deserved to be dropped sooner than he was. If he dosn't start well under Hagan next year there is no alternative at the club.