With the contract Nyquist just got and his ability to top 30 goals, do you honestly see him on the 3rd line? IF Franzen is back, I see HIM 3rd line at them most, with some PP time of course. I really see him being more like the 13th forward. Besides you left out Miller. I think if Franzen makes a successful comeback in the NHL (and right now a successful comeback would be just staying off the IR for a whole season, his 30 goal seasons are over) it will be best to be limited in his role on this team to only playing so much to avoid another relapse.
If our former coach were still here, I could see him forcing Franzen into a bigger role than he is ready for AND keeping Dats and Z together. I believe Blash will experiment with them together and splitting them up to see what is more problematic for other teams. I see a healthy roster looking like this:
Tatar - Datsyuk - Abdelkader
Nyquist - Richards - Zetterberg
Jurco - Sheahan - Pulkkinen
Miller - Glendening - Helm
Franzen (along with either Ferraro or Anderssson)
First of all, if Johan Franzen is healthy - Drew Miller is the odd man out... every time.
Second, I really don't know why its so difficult to imagine Nyquist on the third line. Sorry to piss everyone off, but Gustav Nyquist only recorded 30 even strength points this year - and was invisible during the playoffs (where powerplays are typically less frequent). I'm not saying he's garbage, I'm not saying he's useless at even strength, I'm only saying that Johan Franzen certainly isn't playing on the 4th line, and probably needs to play with Hank or Pav to maximize his effectiveness, but also to create space for either one more so than Nyquist will.
By the way, you also don't coach or play the game simply to avoid injury - because that's when you get hurt. Playing Franzen in a limited role does absolutely nothing for the team, and both parties would be better off without him in the lineup if this were the case.