I agree to an extent, in regards to Ferna and the left back situation 100% need something but personally see a player more suited to the prem in Tosin than Garcia.....there really isn't a substitute for pace and Garcia, although a great footballer looks like he is running backwards.
Centre of the park is a concern as I like rodri but again he is lacking in any pace....to be fair the team is very one paced and I believe would have been taken apart by Bayern who have technical ability and speed in abundance.