I mean, the support and jungler are the primary keepers of vision control on the map. Anticipating the locations that need to be warded is part of playing those roles. You had a 7k gold lead, lost all of it and then some, and still manged to make most of it back. There were clear win conditions in place for you to win, and the game itself didn't even end with someone getting caught out.
Picking out what your teammates did wrong doesn't really help anyone. That was a very winnable game. Seriously sit down and ask what you could have done differently coming off games like that.
Indeed there were clear win conditions. Push and win. We couldn't convince people to group. Further, the most problematic thing was the frequency with which our primary damage dealers would get caught overextended in Veigar's prison. I agree they couldn't take us in a proper 5v5, but there weren't any proper 5v5's after awhile. They were more frequently 4v5 or 3v5 engagements in their favor. The nexus turrent defense was just sad. People going in 1 by 1 and dying.
As for the Visage, yea I felt like I didn't need it but at the time it solved 2 problems: not enough MR and a need for more HP. I didn't feel like they had enough targeted spells to require a Banshee's so I tended towards the higher HP item. I picked up the talisman thing because I anticipated a need to try to help people dodge Veigar's prison (or to push in) with a speed boost.
Overall I was pretty satisfied with our play. We made a lot of plays and saved a lot of lives. Got Lucian out to a 5/0/2 start. We rotated around a lot and bought quite a few wards. At the end of the day, if the team is going to allow themselves to get imprisoned by Veigar, engaged on and deleted, I'm not sure if there's anything we could do to stop them from doing so, and coming to their aid got us killed. And yes, gross positioning errors lose games. All the damage items Lucian and Zed had don't mean much when you're on the sidelines because you were in position to get picked off first (either from diving or standing in the front). People like playing close to the flame and get burned sometimes and sometimes the house burns down as a result. Shit happens.
Unfortunately I never saw Rengar in our base. Too focused trying to keep people alive.
Anywho, I like our chances over the next few days. Should be fun.