I'm fine keeping two of the three...all three might be an issue for depth.
I think the Flames right now would stand at, assuming Smid never recovers...a possibility I feel is quite possible:
Giordano - Brodie
Russell - Wideman
Wotherspoon - Engelland
??? (Culkin?)
Schlemko is pretty much the perfect depth defenceman and I would want him back without question.
Diaz is something the Flames don't have much of: a right handed puck mover. It might be worth keeping him for that reason alone and use him for depth.
Potter is likely the odd man out in this regard...I don't see him adding much that the Flames don't have already.
That would set the defence situation at:
Giordano - Brodie
Russell - Wideman
Engelland - Diaz
Schlemko, Wotherspoon
Which is a lateral move. Trading might solve a hole or two with regard to physical strength and might make Diaz expendable.
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