Who exactly are you looking for?
When you want to go fast, go alone.When you want to go far, go together. -African proverb
Wise words, those are. Let's take them a step further.
When you want to go fast, lightning fast, picking a small team with similar strengths is key. You can understand and think like each other, enabling you to move as a singular unit. It also tends to be really fun.
But, and this is a huge but, people with similar strengths tend to have similar weaknesses, which can open you up to a host of problems. Sometimes, fatal ones.
On the other hand, people with dissimilar strengths tend to take more time to get aligned and on board. Often times, it's a tense process. But, they tend to see each other's blind spots and can help shield each other from the negative ramifications.
So here's my version of the proverb:
For a sprint, seek similarity For a marathon, diversity wins