Прошу помочь перевести фразу:

It can be a personal tragedy for an individual to be outside the fellowship of the workplace because they are unable to meet all the normal requirements.

Не пойму, к чему/кому относится "they".

Выпадение сотрудника из из круга вз*** может стать для него трагедией, так как ***

Спасибо большое.

Видимо, о людях с ограниченными возможностями..

Вот здесь обсуждение:
https://www.multitran.ru/c/M.exe?a=4&MessNum=348135&l1=1&l2=2

The reason is that the main alternatives to this in English are to use:
1. 'he' (which was used for centuries to refer to 'a man or a woman', but is now considered sexist); or
2. 'he or she', which looks wordy, especially when used more than once in the same sentence, as in:
* 'Someone's cycled into a wall. I don't know who he or she is, but his or her bike must be damaged'

So instead people now usually say:
* 'Someone's cycled into a wall. I don't know who they are, but their bike must be damaged'

This 'new' meaning of 'they' is now accepted by most dictionaires, eg Oxford:
      http://en.oxforddictionaries.com/definition/us/they > Para 2 > Usage
However, a few dictionaries and grammar books still insist that we must continue to use 'he or she' or '(s)he', even when this occurs repeatedly in a text. Unfortunately millions of English-speakers (including the media) disagree with them and have done so for decades.

сотрудник не есть individual
выпадение =/= to be outside
и т.д.

выпасть означает сначала быть, а потом перестать быть частью какой-то общности
в данном оригинале речь о тех, кто еще не смог стать частью трудового коллектива. то есть не дошел до ступени, откуда можно "выпасть"

Too sad, because one can always rewrite the sentence choosing other words.

It can be a personal tragedy for an individual
It can be a personal tragedy for individuals

I don't know who he or she is, but his or her bike must be damaged
I don't know who was that, but the bike must be damaged'

You have to say:
bicycles:
* 'to ride a bike/a bicycle' (they're the same thing). Past = 'rode' or
* 'to cycle' (used with bicycles only). Past = 'cycled' – but don't say 'to cycle a bike/a bicycle'.
motorcycles:
* 'to ride a motorbike/a motorcycle' (they're the same thing). Past = 'rode' or
* 'to motorcycle'. Past = 'motorcycled', but not 'cycled'.
cars:
* 'to drive a car'. Past = 'drove'.
planes:
* 'to fly a plane/an aircraft' (they're the same thing). Past = 'flew'.

Other less-used verbs also exist, but the above are the most common ones used in standard English. Some of the 'other' verbs are more informal – for example, 'to motorbike', which appears in this 1975 song by Chris Spedding^†:
www.youtube.com/watch?v=7Juz4W9yEYA
Lyrics to this song:
http://www.lyricsfreak.com/c/chris+spedding/motorbikin_21094186.html
* 'the Queen's (or King's) highway' = an old UK legal term for a public road.

^†  If he's riding at 95mph, perhaps he should have called himself 'Chris Speeding'...?