Nothing wrong with it, as long as they are from groups of a similar vintage and designed for the same setup.
A Record Non-QS front derailleur (FD) could be replaced with the same type in Chrous.
A Record QS FD could be also be replaced with a QS FD in Chorus.
Take care with FDs to ensure that the derailleur suits the setup (ie: double/triple/compact)
All 10 speed rear derailleurs are interchangeable (remembering there are short medium and long cage varieties to suit the cassette) and all 11 speed rear derailleurs are too.
In fact there is also a bit of cross-compatibility between these groups but these simple rules are your best bet.