first thing is first, you pick up lyon because he will be a top 7 closer as far as save chances go.
Now you have great power, great rbis, your average will be decent, top 4 most likely, but your fat, no speed. the runs will be there , overall im looking at about 33 points as far as you O goes.
Your pitching is a little lackluster in a few cats, although the guys you have are decent, there names grab your attention more then their actual value as some of them are only 2-3 cat pitchers (out of 4 not including saves for starters and wins for closers)
harang and vazquez will lite up the ks, but have about a 3.8 era, with maybe 20-23 wins combined. now 10 wins a pitcher isn't that bad, but in a league like this you should have at least 2 pitchers who will get you 14+ wins easily Wang will be your ace, getting you 17-22 wins this year, but he will have about a 3.8 era himself, and maybe 140ks. Carmona is the opposite, 3.3 era, 14+ wins, but only about 140 ks.
so basically what im trying to say is that you need to get more wins, more ks, and a lower era. How do you do that? by trading a 2-1 for a top 5 pitcher as basically like you asked.
With the addition of Lyon, your closers will be Lyon, Izzy, Capps, Gregg. Combined they should give you around 120, realistically you will get about 90-100 of those in your league play.