Chiasson is worth a gamble is the price is to acquire is pretty low. His numbers have declined every year but he's still quite young. He gets PK time but that PK unit is terrible. I wouldn't give up much but he might be an okay dice roll.
EDIT: speaking of PK quality, these are the opt ten PK units last season
ANA
WSH
STL
NYI
PIT
CAR
TBL
NJD
BUF
DAL
Top Four PK Fs on those teams:
ANA - Kesler, Cogliano, Silfverberg, Horcoff
WSH - Richards, Laich, Beagle, Winnik
STL - Backes, Steen, Ott, Brodziak (Brouwer fifth)
NYI - Cizikas, Nielsen, Kulemin, Clutterbuck
PIT - Cullen, Ferh, Dupuis, Bonino
CAR - McClement, J.Staal, Nordstrom, Malone
TBL - Boyle, Callahan, Filppula, Paquette
NJD - Zajac, Henrique, Stempniak, Gionta
BUF - Legwand, ROR, Gionta, Kane
DAL - Fiddler, Scevior, Benn, Eakin
RHS in bold
Of those, which are good fits?