I think it's time to axe Dara from the show - not because I think he's no good (he's done it well for most of his time) but because I think the show needs to go in a new direction, and Dara is holding it back. There are many decent presenters out there - I would actually offer the job to one of the former candidates who has gone on to do more presenting roles, because they know how to be entertaining as a presenter, whilst also understanding enough about the process to be able to relate to the candidates. But there are many people who could do it.
Couple more changes I would make:
-Reduce the panel from three to two. They often seem to have a generic comedian who has no purpose there. I don't mind the occasional comedian, but I think we have too many panelists and they detract from the candidate. If they had one person who was related to the task in some way, and someone else who could change each week (sometimes Nick or Karren, sometimes a former candidate, sometimes some TV personality - it could vary.)
-Change some of the features. The skits are unnecessary, most of the time not very funny, and they really went overboard with them this year. They used to quite often go to some sort of event and film members of the public talking about who they'd like to win - I think they still did that a couple of times this series, but not as much as normal. I would like to have a weekly feature, be that one of those or some sort of analysis of the candidates or something else - even the occasional skit may work, so long as it wasn't dreadful like that awful music sketch - but only one thing each week and it should vary, so as not to take away from the interview. I'm not saying remove the comedy altogether - some of it can be very funny, for instance I enjoy the gifts that they give out - but that should be an extra, not the main point of it.
-When there is a double firing, they should interview them together, not one at a time. Doing one and then another means halving the normal amount of time someone usually gets, and even less than that with the amount of joke-telling that goes on. That will always be the way when you have to get through more people, but you'd have more time to focus on each of them if they were both in at once.
-Make sure information given is accurate. There have been times that Dara has said things that I have known to be incorrect - for example, a big thing was made last year about Alex supposedly having been the first Welsh candidate, and in actual fact I believe that Sophie from Series 3 was the first Welsh candidate, and there was a Welsh boy on Junior Apprentice as well. Also he mentioned that Robert was the first person to be fired without having been brought into the final boardroom, and this was also true of Jenny from Series 4. It seems that they're focussing so much on casual viewers who will have no idea whether they are being told the truth that they forget that there are people, such as those on this forum, who actually know all the statistics. It is a sad day when a presenter says something and actually the fans know better, that should never happen.
This is pretty much it. Generally I'd like more interview, less comedy (though not NO comedy - there is a difference), get rid of Dara, have panellists who actually have something interesting to say and focus more on making it relevant to hardcore fans such as us rather than casual viewers who probably don't really care.