The Father’s Day bombshell that saw Brady Tkachuk traded to the Florida Panthers from the Ottawa Senators could reverberate through the NHL’s draft week.For starters, the Senators picked up three first-round picks and a second-rounder in a deal that weakened their current roster. Expect some of that haul to be put toward adding other players who can help the cause in Ottawa right away.And general manager Steve Staois isn’t just trying to fill a Tkachuk-sized hole in his lineup, either.Staois is scouring the marketplace looking to make a group coming off consecutive playoff appearances better in aggregate.Why the Senators traded Brady Tkachuk to the Panthers in an NHL blockbusterJulian McKenzieZoom out and the effects of the Tkachuk blockbuster will be felt in different ways. The deal serves as a reminder that rival front offices are adopting a bold frame of mind while approaching roster construction this summer. Plus, it kept the momentum going on a wave of transactions coming out of the Stanley Cup Final.Next up?One of the busiest weeks on the NHL calendar.Without further ado, it’s the draft-week big board.As always, players and assets are listed by how closely they demand watching, based on their potential impact and the current amount of buzz around them.(Note: Contract details via PuckPedia.)1. Dylan LarkinTeam: Detroit Red Wings