NL West Over/Under On Saves

There is a science behind baseball player projections. But one of the more difficult stats to project is one of the more important one for fantasy baseball enthusiasts and that is saves. Saves by itself is not a great indicator of a pitchers talent, but nonetheless it is important for this niche of fantasy baseball managers to have a good swag on how many saves a closer or closer in waiting will likely get. There is obviously a large margin of error on any projection of saves but a good over/under (or mean average) number shouldn't be too difficult to publish. I am beginning publishing some save over/under numbers, starting with the NL West. I would like to get as much feedback as possible, so these numbers can be as representative as possible of a "Vegas type" over/under number. Please provide your thoughts below.

NL West

Player	Team	Saves Over/Under
J.Broxton	LAD	34.5
H.Kuo	LAD	4.5
M.Guerrier	LAD	2.5
K.Jansen	LAD	2.5
B.Wilson	SF	41.5
S.Romo	SF	2.5
J.Affeldt	SF	2.5
J.Putz	ARI	26.5
J.Gutierrez	ARI	4.5
D.Hernandez	ARI	2.5
H.Street	COL	32.5
R.Betancourt	COL	4.5
M.Lindstrom	COL	2.5
M.Belisle	COL	2.5
H.Bell	SD	42.5
M.Adams	SD	2.5
L.Gregerson	SD	2.5