With these settings and your goalies I'd listen to Granlund+ for Luongo, but how much is he willing to add? If he has any interest in St. Louis at all I would try to sell that as well.
I would rank the 'prospects' as follows:
If you needed goaltending Markstrom would be higher. OEL is so high because he's not a prospect and has displaced a former 60 point defenseman on his teams depth chart. If he can do that he's going to get a long leash and will always have more PP time than he knows what to do with. Same deal for Landeskog. He's the youngest captain in the history of the NHL, so they are going to give him whatever he needs to succeed. I'd make an offer of Luongo and St. Louis for Granlund and Ekman-Larsson and see what happens. If he's unwilling to move OEL I'd target Landeskog next. I've had great success with taking on injured players for less than they are worth and stashing them for a season. He's certainly not dealing from a sell-high area if he's willing to talk about Landeskog and Granlund, whereas St. Louis and Luongo are both having great seasons so far.
16 team, full keeper
19 roster players, 15 prospects
Stats: G, A, PPG, SHG, special teams assists, SOG, FOW, PIM, hits, blocked shots, +/-, W, SO, saves, s%, GAA, shootout saves
C: Crosby, Backstrom, H. Sedin, Boyle, Brassard
W: Voracek, Burrows, McDonald, Filppula, Dorsett, Hudler, Abdelkader, Bouchard, Ott, Zuccarello, Stalberg
D: Karlsson, Letang, Enstrom, Boyle, Giordano, Gorges, M. Stuart
G: Quick, Kiprusoff, Ellis
Prospects: Granlund, Pirri, Caron, Killorn, T. Johnson, Galiev, Corrado, Vatanen, Moore, Rundblad, Bachman, C. Johnson, Desjardins