I think the in house team could do an OK job. But these are very specific skills, if the skills are not already there, they take quite a long time to develop.
I think it is quite naive of anyone to think that Blackpool's in house team could do a better job than a company that literally build and renovate wooden roller coasters for a living, day in day out, with hundreds of coasters under their belt. Just because they got a company in the past who made a mess of the job, doesn't mean every company will do the same. I could take my car to a garage who could make a mess of some repair work, that doesn't mean every garage is going to do the same.
It has been around for 85 years yes and has never had a professional company do work as someone quite rightly pointed out.
But that is the point exactly, being 85 years old it needs some major work doing to bring it back up to scratch, something which is beyond the skillset of the park team, no disrespect to the park team whatsoever, but this sort of work is not what they do day in day out.
I say, if it needs work and I think it does. Then hand it over to the professionals and let them do a proper job. The team at Blackpool may be professionals in their own fields of work, but that is not in the field of building roller coasters, that is for sure. I don't necessarily mean getting GCI in either, just a competent company. Who will do a proper job with their experience and skill sets.
The Blackpool team could do a reasonable job I am sure, but it is like getting a painter to tile my bathroom though, sure the tiles are going to be there and look reasonable , but it won't be as good as if a tiler did it.