*CRITIC'S PICK* Old Friends,” which opened on Tuesday at Manhattan Theater Club’s Samuel J. Friedman Theater, is in that sense a lot like its predecessors. The 41 numbers it features come from the main pool, with an emphasis on songs from Sweeney Todd, Merrily We Roll Along, Company, Follies and Into the Woods. Most of them were brilliant in their original context; many remain so outside it. Some are sung spectacularly by a bigger-than-usual cast of 17, led by Bernadette Peters and Lea Salonga. Others are middling, a few are misfires. [...] Though directed by the British choreographer Matthew Bourne — the show began life as a one-night gala in London — Old Friends has a stodgy quality that I find surprising. A couple of boxy towers [...] dominate Matt Kinley’s set design, moving back and forth as if in a very slow chess endgame.