The local hacks were either duped by the club, or else duped the fans on behalf of the club, because all of those 'we have absolutely no interest in Thiago' stories went on for ages, and it just insults the intelligence to suggest that a week ago the club suddenly thought Thiago was worth pursuing after all.
So what changed? From the outside, you could speculate that our pre-season performances, followed by our all-over-the-shop first game against Leeds, would certainly have helped the cause of anyone inside the club who'd been insisting that we really DID need to strengthen the squad.
One could also imagine that the club had its targets and was merely waiting until the right deals could be struck.
It's probably a combination of the two. There surely wasn't a completely coherent plan or strategy: there were simply too many claims emanating from the club early on that we'd be fine with what we've got, and the kids would come on dramatically to fill the gaps, and you just don't chase Werner for over a year if you think he (a) isn't good enough and (b) will expect to start most games. So they had plans, but they must have changed to some extent because of finances and internal debates. There surely must have been SOME cause for concern as our performances kept looking so below par - it's simply irresponsible to explain away so much.
I think the Jota signing is the biggest sign there was a fairly dramatic change in urgency if not also policy. Left back - that had been a priority for ages, and the process of picking the right-priced target began promptly. Thiago - he had also been a target for quite a while, regardless of the nonsense that the Echo kept churning out. But the Jota move? Maybe it's just because I don't know enough about him to find the signing more than mildly underwhelming, but in the past there's been such an emphasis on waiting for the player Klopp really wanted, and did he REALLY want Jota more than any other? He seems much more like the kind of 'low down the list, at least he's flexible' signing Rafa used to keep making.