The only advantage Archibald has over Sheahan is that we have horrible winger depth so Archibald plays higher in the lineup more often. Otherwise I'd argue that Sheahan is actually better defensively, as well as being a centre and being good on face-offs. They're equal players imo. That being said, if we can get Sheahan signed at 1.2, I'd be really happy haha.
One of these players is a third line winger who can and probably should score between 10-15 goals every year. He's quick, he can play up the roster. He's a good find.
The other is a dime a dozen 4th line centre who isn't actually that good at faceoffs, nor is he that special defensively, but because he's now associated with Archibald - is a risk to sign an inflated deal.
A smart GM signs this deal for Archibald and then low-balls Sheahan. You can replace everything he does for less a million dollars every year in free agency. That's why he was there to sign in September.