Cech needs to be put out to pasture. He has cost us so many silly goals this season and was responsible for 2 errors against Brighton, yet again, on the weekend. I don't trust Ospina much but he puts in a shift when he is between the sticks, at least. I expect both to be gone in the summer as well.
Cech is really slowing up. Ospina's handling is not as good, and he is not as tall, but he is very quick off his line which is a necessity these days at the top level. I think Cech has cost us far more goals than most fans think. Ospina is at the top of his penalty box, so much more than Cech is. He denies attackers chances and reduces the number of saves he has to make. I think he is a top keeper, and I think the defence trust him to sweep up behind them. I agree with you, I'd retire Cech now.
No, please God no! I think Hart is very similar to Cech, his agility and speed off his line is really poor. He gets caught too far out, because he has to cheat early to coming out, in order to get there before attackers. He just has none of Cech's redeeming features.