wondering the opinion on a guy whose arm strength and accuracy is 59 going to 3B

not good enough ?

That's gonna be rough. I'll drop to 65 IF he's got a huge bat but never dipped that low.

I once played a really mediocre OF at 3B because I had nowhere else to
put him, but my team was really bad and he was one of my top 6 hitters. He had one of those outa-nowhere good seasons and won the 3B Silver Slugger. Next season he went back to crap and I dumped him.

I used 60/61 Placido Alvarez. for season 30 because of his bat. Finished with 20 errors but was +9/-1 so it was worth it.

I've used this guy Player Profile: Ronnier Pickford - Hardball Dynasty Baseball | WhatIfSports for a couple of seasons as a back-up because my starter gets tired crossing the street. On the surface, it's not been terrible but his RF is about .5 lower than an average 3B. Only 5 errors in 388 innings. No +/- plays. But he also has exceptional range/glove. I'm assuming the OP is asking about a 70/70/59/59 guy.

Got it. Better range and glove counts for the + plays my guy had, but lower AA/AS account for the 20 errors I suppose.
Either way that bat was worth it.

Range/AS for +/- plays. Glove/AA for errors.

https://www.whatifsports.com/hbd/Pages/Popups/PlayerRatings.aspx?pid=6808193

I played this guy a couple seasons at 3B and his career at 3B is 35+ and 1-. So I don't think 56 AS hurt him at all