Actually, based solely off of that comparison I would definitely choose Lucas1. The HLTV and KPR ratings are very marginally different, so not a large enough difference to matter in any way, and the same can be said of the Impact, AWP kpr, Opening kpr and FAs per round. However, given that Lucas1 has a lower "Survivor" rate but a higher KAST would suggest to me that he more often than not dies in situations where he's tradeable/gets in more damage per round and receives more assists because of it.
On a team that has been known for the brilliance of two or three members (when they were performing, maybe not now) and the ability of the other members to meaningfully contribute or aid the strategy, this looks like it could be a good move on paper. Quite honestly I think it'll definitely change the dynamic of the team, I don't think how Lucas1 has played in the past is comparable to felps at all. As for whether or not it's the right move for them is definitely up for debate. I think there's more talented players on the field than Lucas1, but as for how attainable they are i have no clue.