As a lifelong blues fan, I'm embarassed.
Apologies to the Lightning before this gets locked. Replace Shattenkirk/Rattie with Fabbri/Parayko, and Yzerman might have a *small* reason to consider it...but even then - i'm not sure he moves Kucherov, Who he is (rightfully) looking to jettison other contracts to afford.
Shattenkirk is a pending UFA due a raise, and Rattie is...a Ty Rattie...the original offer is Shattenkirk plus spare parts for pretty arguably one of the best forwards in the league. The Lightning are not trading Kucherov for anything less than what it would take us to consider trading Tarasenko.