Just out of curiosity (and surprised it hasn't been mentioned)...
What does your back end look like? Any solid D-men worth keeping in that last spot? I know they may not produce as much as Brown/Burrows, but if they are relatively much better than the competition, it may be worth it to keep one of them as your last keeper.
16 team roti keeper (yr 5/5, keep 6)
G, A, +/-, PIM, PPG, PPA, SHG, SHA, GWG
W, GAA, SV%, SO
2c, 2lw, 2rw, 4d, 2g, 8bn
C: Stamkos, Backstrom
LW: Sedin, Landeskog, Ott (C), McGinn
RW: Purcell, Brunner, Stewart, Boyes (C), Hornqvist
D: Letang, Byfuglien, Streit, Carlson, Beauchemin, Barrie
G: Ward, Schneider, Ellis