Leary was much better at that LG spot than Lael ever was.
So let me just make sure I understand this.
Leary got vastly overpaid even though he was much better than Lael at LG (lets not act like Lael actually earned that spot) sandwiched between two all pros.
Lael Collins struggled when sandwiched between two all pros.
But Collins is definitely going to prove an upgrade at RT
I don't believe it was that clear that Leary was *significantly* better than Collins at the LG position. Better, yes But Collins was younger with massive potential. Considering that he was a rookie learning a new position, he wasn't that far behind Leary. Leary had the advantage of experience, and not much more.
That being said, aside from TM, I don't think anyone is making this argument about the playing ability of the two players. The main point everyone keeps bringing up is the money aspect. What Leary was paid, when you consider the amount of resources already committed to the OL, was prohibitive for the Cowboys to match. Now throw in the need to resign Zack Martin. I think it's easy to understand why Dallas was reluctant to commit that kind of money to Leary. All that being said, I don't believe money was Leary's gripe.
The report was that it was as more about starting is it was money for Leary. For all he knew, Collins was going to start at LG because Doug Free was still around at RT. Leary wanted to start, which is why he asked Dallas to trade him last year. When Jerry wouldn't accommodate him, he was gone - money or not.
Has anyone known Free was going to retire, them it's possible that the plan all along would have been to move Collins and give Leary his job back. As it is, it played out differently. In the end RT will be an upgrade over Free, and LG will be still be serviceable.