Junichi Tazawa's first attempt to fill the shoes of Koji Uehara did not go so well. Also: a new face in BAL, some struggling vets in NYY, a pitching shuffle in TAM and a 1B duel in TOR.

Out of favor as a Cub, Junior Lake has landed in an unsettled situation, to say the least, in BAL. Can he take advantage? Others for whom playing time has popped open include Travis Shaw and Steven Wright. Plus, the TAM and TOR bullpens.

The division's quietest team at the trade deadline, Boston, seems set to shakeup its rotation nonetheless. Elsewhere in the division, new arrivals are prompting teams to rejigger their playing-time allocations and rosters.

Chris Colabello has been a pleasant surprise with his bat but less so with his glove, plus trade deadline possibilities around the division

With a couple of likely trade deadline sellers, outfields and at least one rotation in the NL West may be in for a shakeup.

Brad Boxberger believes he has rectified an issue with tipping pitches that contributed to a recent ugly outing, but Jake McGee looms. Also, is Matt Wieters teed up for a big second half? Does BOS have other 1B options?

When Dustin Pedroia returns, Brock Holt will need a position; could it be 1B? Meanwhile, the rest of the AL East have shuffled or are about to shuffle their starting rotations.

In both BAL and BOS, higher-upside young pitchers are in a holding pattern behind struggling veterans. How long will those situations persist? In NYY and TAM, players returning from injury will soon shake up playing-time situations, while in TOR, a catcher sees a bump in AB.

Chris Parmelee has made quite a splash since arriving in BAL—but does he have staying power? BOS quest to settle RF continues; NYY six-man rotation possible; TAM return of injured SP on horizon; TOR has some surprising bullpen arms.

Might Miguel Sano join Byron Buxton in the majors soon? If trades come to CHW or CLE, who might be helped? Plus Victor Martinez's return in DET; and arms in KC.

The arms, they are returning: Kevin Gausman, Justin Masterson, Ivan Nova, Matt Moore... but just how do they fit in each team's plans?