The phrase "a very small pool" is correct and usable in written English.
It can be used to describe a limited or restricted group of people or resources, often in a metaphorical sense.
Example: "In our study, we found that the participants came from a very small pool of candidates, which may affect the generalizability of our results."
Alternatives: "a tiny selection" or "a limited group".
It will be a "real disincentive to what is already a very small pool of lawyers willing to take on human rights-related cases against multinational enterprises".
"Universities with poorer access records misleadingly claim success because they have more funds available to a very small pool of students".
"We've got to find somebody that really fits Notre Dame, that fits our situation and I think that's a very small pool," White said.
I think if somehow or another because you're a person of faith you believe in good and evil is a disqualifier for president, we're going to have a very small pool of candidates who can run for president".
In many ways, Marcus Printup is one of our better jazz musicians: he is an excellent trumpet player among a very small pool of excellent trumpet players, and through his work with the Lincoln Center Jazz Orchestra he has been privy to a large and exclusive body of knowledge about the inner workings of American traditional jazz.
The first false premise is that only a very small pool of people is capable of running great universities.
Interestingly, in a significant population of cells expressing R521G and R524S mutants, which generate only very small pool of cytoplasmic protein and rarely form visible aggregates, Pur-alpha and TIAR relocalize in SGs.
Cells expressing R521G and R524S mutants, although show very small pool of cytoplasmic protein and undetectable protein aggregates, induce a relevant relocalization of Pur-alpha and TIAR in SGs, while no relocalization is observed in cells expressing FUSWT.
Point being: If you're starting from a position of there not being enough users in the first place, requiring your (very small) pool of users to earn and spend points to do things like boost their visibility seems a bit pointlessly heavy-handed (even if it's intended to encourage greater usage overall).
But because the lifetime odds of being a victim were so high twenty years ago, this halving doesn't mean that some very small pool of "unlucky crime victims" got even smaller.
You're originally from Turkey, which puts you in that very small pool of internationally recognized Middle Eastern designers.
