There's a few players that are close to RDRS level. In my opinion, it's not about individual skill, it's about the IGL. You see, ALEX is the IGL of the team, but he's mechnically really good, so I'd bring another IGL in place of mopoz ( sorry bro ) to unleash ALEX and be able to have 2 constant fraggers ( mix and ALEX ) while having a good tactical side. DeaTh isn't bad really, he's not in the best positions RN, but he's playing more as a supportive player, like olof, to bring space to his teammates.
I'd say to bring arkii, a good IGL who's been long in the Spanish scene and try. IMO no chances are needed, but if RDRS needs one, it'd be that one for sure. I don't know any players that are really good mechanically in Spain, since most are average, or have bad mentalities. I don't understand how every Spanish team makes roster changes every 2 months :(