Mrazek is out of waiver options after this season. That wouldn't work.
"Petr Mrazek's waiver exemption of 5 year(s) and 73 games remains in place through to the end of the 2015-16 season. However, that exemption will end immediately when he appears in 73 career NHL regular season and playoff game(s). He has played in 14, meaning he is 59 away from his exemption ending."
- DSM likes this