In place of somebody/something
Definition 1 of 1
Pro Tip 1/3Replacement Not Equal
Using 'in place of' implies a substitute, but not necessarily equal in quality or characteristics. 
He took the night shift in place of his sick colleague, but wasn't as experienced.
Pro Tip 2/3Temporary Substitute
'In place of' often suggests a temporary replacement rather than a permanent one. 
The professor used a video in place of the usual lecture, as she was away at a conference.
Pro Tip 3/3Context Matters
The context in which 'in place of' is used can affect its connotation, implying preference, necessity, or improvisation. 
She sang in place of the lead vocalist, who lost her voice.