If you've identified two pieces that you think are core, you should be figuring out what complementary pieces allow them to maximize their strengths while minimizing their weaknesses. For example, what makes Phaneuf special is his hitting and offense. With the tools he has, to really exploit those things, he needs to take high risk. In an ideal world we could find a way to make him above average on both fronts but in most cases that doesn't happen. What you don't do is remove the thing he can do that is above average. So you very specifically hunt for that partner that allows him to exploit his strengths. Look at what we have paired him with and where they fit elsewhere. Same goes with Phil. Boston very clearly showed that when paired properly, Phil is a positive force. You don't need people like you are suggesting (the as good or better). You need guys like Steen, Bergeron, etc. who will never command the upper salaries but perfectly offset the other person's skill set. Don't get me wrong, if you can get the player that has everything, great but that's unlikely.
Pat Burns was probably the best coach I've seen in my 5 decades of watching the Leafs. He excelled at the concepts of maximizing strengths/minimizing weakness, getting buy in to roles and overall getting the most out of what he had.