Many still feel burned by Tsuyoshi Nishioka and ByungHo Park. These two disastrous signings came from multiple causes: failure of scouting, failure of projection, and failure of vision.
The scouting is apparent only in retrospect, to us outsiders anyway. Nishioka showed little ability at shortstop, and it was said that his major injury was due to improper technique during a double play attempt, which is definitely adding insult to injury - bad news when he hit like a glove-first AAAA guy at best. Park, the bat-first one, showed flashes of power but not often enough.
The projection of stats maybe was foreseeable. Neither of the Asian leagues they played in are at the major league level overall, so stats there must be translated in order to be meaningful. Both players went back to their respective leagues and put up batting numbers about like they had before they left. So it's not like they suddenly got worse when they came to the US, and conventional wisdom that those leagues were about like our AA should have been scrutinized by the analytics groups in the FO - oops, back then (2012 and 2016 respectively) those groups aren't like they are now. Were these players both outliers in some way, or was the translation of stats too optimistic?
The vision thing amounts to reaching contract agreements in the $2-3 million dollar range, and not stopping to wonder why other teams weren't trying to outbid them. You have to trust your own scouting department (though, see above), and maybe they've spotted someone no one else has (so, hush-hush until the ink on the contract is dry), but it can't hurt to listen to what 29 other teams' departments are trying to tell you implicitly - especially the successful ones. It's like the proverbial dog that didn't bark.
The past is past, and the Asian leagues may be different and perhaps better now. Our FO is different too, and hopefully better. I pray they have completely cleaned house in all these respects. What's needed now is scouting of players' fundamentals, accurate projections from past stats that hopefully confirm the assessment of fundamentals, and then context within what rival MLB teams are also trying to accomplish. Aim high, i.e. the ones mentioned in the article that won't come cheap. If the information is true that the Twins are scaling back their roster budget, that's going to be nearly impossible to achieve.
If we sign one or two off-shore guys for key positions, and the salaries are bargains like Nishioka and Park were portrayed as, I'm going to be really skeptical.