Why would we have heard about it? Gorton's forte has not been on the side of telegraphing his moves.
Where have we heard this from aside from reading it around here? That is pure speculation.
Krieder is a very valuable trade chip whose value may never be higher. Why is there no speculation on him being traded? Or Zib? Or Henke? There are tons of reasons to explore moving them also.
Why is that safe to say? Because they did not go out and sign him to a 5 year deal? They just signed him for two years, not one. Maybe they want to see what they have without AV running the ship, so that they can make educated decisions about the future of the team and the players?
IF his forte has been not telegraphing moves he hasn't been very good at it. Outside of the Brass trade, we've basically seen everything else coming. His 2 bigger trades (Stepan and McDonagh) are things we heard about weeks in advance to them actually happening.
Kreider very well may be someone they end up moving later this year, but he's already signed and is only under contract for the next 2 seasons. Ditto Zib except hes signed for longer. They've committed to those guys, they may not want to commit to Hayes.