1. As per the first paragraph and next sentence, the positions you're *actually* talking about are TE, both safety spots, and DT. Not LB, though. They've always invested in star LBs, even if those drafted high didn't always turn out to be stars (Bruce Carter) but they haven't gone without a star LB or two in pretty much forever.
2) They're going to have to move Connor Williams to his natural RT position at some point for the OL to realize its league-leading potential. He's fast and athletic, but he just doesn't have the upper body to play guard. Move Williams to RT and let contract year Collins/Looney battle it out for starting LG. If Looney starts at LG, you have a solid enough swing tackle in Collins for 2019 who can play all along the line except maybe center.
3)
at the statement that Cooper is a "much better" version of what Bryant was in 2014. Cooper is awesome, but Bryant was on a different planet in 2013-2014 before his foot injury permanently wrecked his career. Is Amari Cooper far better than what Bryant was in 2016? Absolutely. But in 2014, Dez Bryant was in the conversation for top WR in the league along with Megatron and perhaps Julio. He led the NFL with 16 touchdown receptions and had 88 catches for 1,520 yards.
The Cowboys offense in 2014 was basically the same as the Steelers' offenses in 2015-2017, where they had a top flight running game AND a top tier receiver defenses lost sleep about the whole week leading up to games. That, and Romo would still manage to escape and find the open man if Dez was covered AND Murray wasn't running the ball. The Cowboys were unstoppable on offense that year until they stopped themselves in the playoffs with some bad coaching at the end of the first half and a horribly ill-timed fumble by Murray who was sure handed the whole year.
4) Michael Gallup is a legit #2 and a heck of a deep threat, once that connection forms with Dak he'll be averaging roughly 1,000 yards receiving per season on a team with Cooper. Think of him as Juju Smith-Schuster 2.0.
5) Beasley is gone. He's become a money mongering diva. He's not worth Edelman money and Edelman only makes about half as much as Beasley wants. Let him go to the Jets or wherever. I don't care. Get a real slot receiver who can run a full route tree, including routes past 15 yards.