The Ottawa Senators didn't drastically change much on the roster this off-season, with the exception of their goalie situation. Surprisingly, the Sens won the coveted Matt O'Connor sweepstakes, signing the free-agent goalie to a two-year entry-level contract.
With that single signing, management would set themselves up for some serious decision making during the summer. Ultimately, it resulted in them sending Robin Lehner to the Buffalo Sabres and re-writing the goalie future as we knew it.
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But it's not like the Sens were left with nothing at the end of that trade.