Definitely, although it was sad to see he only had 15 minutes, if he had 30 there might have been a different outcome.
After watching Lucas yesterday, and Chelsea today, and going back on what someone else said in the Level 3 thread, I do think it's possible to start with Lucas, Alonso, Mascherano and Gerrard. However, the only problem with this is we lack any alternates when playing this many central midfielders. Chelsea currently have what are 4 midfielders in their normal starting XI, who conventionally like to play down the middle (Joe Cole would like to play there too if you asked him, but he does a more than suitable job on the wing). They're soon to have Essien back, which is a great alternate. We on the other hand, have Plessis and Spearing, as far as I'm concerned the jury's still out with those two.
I think the other problem we have if we wanted to have this midfield is lack of support from the full backs, especially the right side. The system Chelsea deploy relies quite heavily on their full backs bombing foward. I can see Insua making left back his own, and I have no doubt he has the ability to be a top class attacking defender. However, as reliable as he is, I can't say the same for Arbeloa. Were we to invest in someone like Johnson or Rafinha in the summer, I'd change my mind.
So what would the best system be? Personally, I'd have Mascherano in his usual role, with Alonso pushing up a bit more, along with Gerrard in the other central role. Riera's more than able to play on the left of a narrow midfield, so we're left with right midfield. Kuyt can do a job there, but it's Lucas I'd like to see have a crack on that side. He played there a couple of times this season, PSV if I remember correctly, and he was very good. He played there against Newcastle last season as well (away) and did an equally impressive job.