There aren't any short term loans anymore, only full season or half season.
My understanding is that players can only be recalled during the transfer window and there has to be a prior agreement in place that the parent club has the right to recall.
Steele is 32 and although he suits RDZ's style of play, he's not a top keeper.
I haven't seen Rushworth play but the club/RDZ clearly think he's not ready for the first team yet.
If Verbruggen is as good as it sounds like, it makes a lot of sense to bring him, develop him, play him in the cup...
There's quite a lot of keepers that spend years without really playing.
Kelleher at Liverpool being an example of one, and he's being linked with moving for a pretty decent fee.