What do you do when...

[MD Longhorn]

You are PU. You've had a decent pregame.

Partner is
A) a relatively new guy you've never worked with before.
B) a rookie you are charges with helping train
C) a guy you know to be experienced with whom you've never or rarely worked before.
D) a guy who tells you he's experienced, with whom you've never worked befoer.
D) a partner you've worked with hundreds of times.

First batter hits a double. You are moving behind the plate, start to get ready, and notice your partner is in A.

What do you do with each of the 5 partners mentioned above. Had this happen recently and I didn't know what to do (if anything) about it.