The Orioles will officially announce the two-year, $8.15 million signing of Japanese left-hander Tsuyoshi Wada at 4 this afternoon at Camden Yards.

So one lefty has been added to the rotation – and it’s two if you count Dana Eveland, whom the Orioles traded for last week and is also penciled in as a starter.

Orioles executive vice president Dan Duquette had a pretty long shopping list when he took over: at least two starting pitchers, bullpen help, a reserve catcher, a reserve middle infielder, a corner infielder and a left fielder/reserve center fielder. Depending on what happens with some of those spots, a DH could be needed as well.

The reserve catcher has been filled (Taylor Teagarden), and middle infielder (Matt Antonelli, Ryan Flaherty) and maybe corner infielder (Antonelli/Flaherty).

That leaves left fielder on the target list and bullpen help. I also believe the club is still seeking more starting pitching and will keep targeting an upgrade at third base. Chris Davis is the starter now with Antonelli and Rule 5 draft pick Flaherty in the mix. But I think the Orioles would like something a little more stable, especially if Mark Reynolds is traded and Davis shifts to first.

Duquette has found most of his depth on the cheap so far. So I think adding a free agent or two is still viable. Duquette hasn’t made that signature trade yet either, one that isn’t about depth, but about securing a quality player or two for now and the future.

That would mean an exit of Jeremy Guthrie, Reynolds or both, since they have could help other teams and aren’t necessarily considered future building blocks in Baltimore.

All that said, I don’t see Duquette giving away either player, so it would have to be a deal that he thinks makes baseball and economic sense.

There’s still two months before pitchers and catchers report.