That Scherzer I opened was on my packs-only team. They're unusual in that they open packs on a fixed schedule (2 on Wednesday for "mid season callups" and 5 on Sunday for "offseason influx of new players"). The only other packs I get for this team are the free Challenge mode packs, and "bonus" packs which are purchased after I sell 6 Bronze+ duplicate players. Since I don't have any use for excess PP and since I don't use the AH there was no value to selling the Scherzer... plus as a Nats fan I was completely psyched to get him. So you bet I'm using him.
My team had a great offseason - between the 5 offseason packs, the challenge mode pack, and one bonus pack, I got the Scherzer, a 93 OVR Cliff Lee and an 85 OVR Acuna (plus a duplicate 85 Buehler!). Hopefully this gives us the boost to finally get out of bronze.
Edit to add: Forgot to mention - in either his 1st or 2nd start for my team, Scherzer pitched a perfect game.