Yeah he was pretty good with Henry and Bergkamp
Really? You gotta know your Arsenal history bro! Henry and Bergkamp were basically unknown commodities before joining Arsenal. Henry, even though he had some hype as a teenager, was failing to live up to it. He was trending into bust category before joining the Arsenal. His scoring streak at Monaco was pretty good for a young player, but he failed at Juventus. Bergkamp had even less hype and was completely miserable at Inter, didn't even score in his first 10 games or so at the Arsenal. Then he just lite everyone up as well, but I will admit he was amazing for Ajax before moving to Inter.
I wouldn't say that Wenger developed them into what they are now, legends, but he absolutely took a chance on signing both of them (who looked like busts) and rejuvenating their careers.