My opinion; The Leafs should be playoff bound, without making any further changes. Let the current players, and prospects grow this year, and see what we have. Zaitsev should rebound, we don't know what we have with Ozihganov, Carrick in limited usage, had great stats in the past, and we have to see how Liljegren develops over the year..... It's possible that we already have our answers. It might be best to keep the picks, so that we have a pipeline of ELC cost controlled type players, when our non-core need payment increases, that we can't afford.
Situations might change for other teams as the year goes by as well... maybe a Tanev becomes more available. Maybe Pesce does.....
At this point, the prices on players that might be marginally available, isn't going to drop. If such deals haven't been done by now... let's just drop the puck, and see what we've got.