You're missing the point that's being made, either because you don't understand or you are trying not to understand
Clarke had an issue with Robbo and Tierney around how to get the both in the starting line-up...he came up with this 3-5-2 type of formation that we currently play, which allowed both to cover for one another on the left hand side both defensively and offensively. On the right he didn't have that luxury, but he wanted McTominay in the side and believed that his defensive attributes were good enough but also his 'range' of passing was ultimately miles ahead of any of our real centre backs...he didn't just want him to give it to Gilmour, he wanted him to be able to ping it to Adams, slide rule it to McGinn and switch play to the left...with the best will in the world, Hendry, Souttar etc are a huge drop off in that regard.