Let's wait and see. If a better candidate is gettable, then let's get him instead. As Unsworth said, it's about what's best for Everton and winning matches, not individuals or playing to the gallery.
That's my stance. If we think there is a really good candidate who the club believe is the answer then they should do it. If they arent convinced or arent happy with the people they can get now, and in the meantime Rhino is getting good performances, results and generally looks like he will be ok in what he is doing plus positive noises from the training ground that is when that kind of decision around keeping him until the end of the season should come into it.