How do you know when it's time to kick out another member? The drummer, lead guitarist/vocalist/BL, and I have talked about problems with our rhythm guitarist for like the third time in the past month or two. He was in the band long before I joined, but it seems that now I'm on board the BL really wants to get things moving with new material and gigging. One of the main problems is that he's not really on board with moving on to new things. It seems like we're having practice so the RG can get the songs down that he should already have down. We (the trio) want to put most all of our time and effort now into writing new material. We've only written one new song since I've joined and it is leaps and bounds ahead of the band's previous material. The BL and I have like 5 song ideas each. However, the RG feels like we should "get down" the songs the rest of us have ingrained into our brains. This leads into the next problem which is that he 1. Isn't that great of a player and 2. Doesn't practice on his own. Those have their obvious repercussions. Now this isn't to diss him as a person. We're all friends and he's a good guy. He's contributed time, effort, and money to getting the band going along. But now it seems he's musically holding it back. The drawbacks to kicking him out is that the friendship he and the BL shared will pretty much be over, and I'd feel kind of bad because I don't know what he'd do afterwards. This band is mostly all he knows, he doesn't have any original material for himself, and he's not a good enough player to jump in another band. We are going to tell him throughout the next practices that we are moving on to new things and he's either on board or he's not, and if he messes up several times at our next gig then he's gone. What do you guys think? Are these legitimate reasons? Is there a time when you should push forward and leave someone behind?