I don't see how any of that would result in the returns looking ugly. Scrivens will be lucky to see more than 15 games next season at league-average back-up performance, while Bernier has a good chance at becoming an elite starter. At the very least he represents a significant improvement over Scrivens.
Frattin is absolutely nothing special. He's a somewhat undersized physical third-line checker who takes too long to release his shot and was a total non-factor offensively after the first ten to fifteen games last year. His consistency and lack of additional dimensions to his offensive game beyond that shot mean that his long-term upside is limited bottom six duty. He's a loss that could easily be replaced effectively from within (by guys such as Ashton, D'Amigo, Leivo, etc.) without the Leafs suffering much for his absence.
The second round draft pick will likely be between the 50 and 60 range, which is exactly the range that we were picking this year when we dealt away #51 in the Bolland deal. Chances are that you pick up a comparable player to Jesse Blacker or Jimmy Hayes in that range, neither of whom are impact players either.
It's a minimal package really.