Trading Saarela makes no sense for Carolina but adding a 1st to Filppula makes no sense for Tampa. Filpulla isn't a cap dump. The last 3 years he's had 137 points in 233 games for a 0.58 ppg average, Eric Staal has had 154 points in 239 games for a 0.64 ppg average, Jordan Staal has had 112 points in 210 games for a 0.53 ppg average. Filpulla is between the two of them in ppg over that span and cheaper than both, he could be a good 3C for you who could be a 2C easily if needed. There could be a trade between both but this isn't it.