D'Agostini, 26, has one goal and one assist in 16 games for the Blues this season. The restricted free agent, whose contract expires at the end of this season, carries a cap hit of $1.65 million (pro-rated).
Could this be another under-the-radar, unheralded move by Devils GM Lou Lamoriello that pays dividends?
Remember, Lamoriello wasn't the flashiest GM on deadline day last season, either. He acquired winger Alexei Ponikarovsky and defenseman Marek Zidlicky before the deadline, and both players proved to be key pieces of the team's run to the Stanley Cup finals.
In fact, Lamoriello liked Ponikarovsky so much that, even though the veteran winger signed with the Winnipeg Jets as a free agent this summer, he re-acquired him in a trade this season.
In a related roster move, the team assigned left wing Harri Pesonen to Albany.