Birmingham City will look to bounce back from consecutive home defeats when they take on Coventry City at St. Andrew's tomorrow night.

Although technically the away team, Aitor Karanka's men will be in familiar surroundings against the Sky Blues and they will see this clash as an ideal one to get back on track.

Blues have been extremely inconsistent since the Spaniard was appointed, although that was to be expected given the turnover in players and new ideas that Karanka is trying to implement.

Working with the players for the past few weeks on the training ground will have been a big help as he searches for the right formula and here we look at TWO dilemmas facing the boss ahead of tomorrow's game...

What formation to go with

The ex-Middlesbrough chief went with a back three against Bournemouth last time out and it would have been for two reasons.

Firstly, it allowed him to pair Lukas Jutkiewicz and Scott Hogan together to hopefully address the lack of goals, and he would have expected to match up the Cherries, even though they sprung a surprise on the day.

As it didn't really work for Birmingham, you would expect Karanka to switch back to a 4-2-3-1. However, Coventry usually adopt a back three, so he may want to match them up again.

Given the importance of trying to win this game, most fans would want a more adventurous approach on Friday night.

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Whether to start Jake Clarke-Salter

Bringing the talented Chelsea defender back to St. Andrew's was considered a coup for Blues in the window but injury has prevented the left-footer from starting since he signed.

But, he is fit now and if presents Karanka with a selection headache. Generally, his side have defended well this season but Clarke-Salter could provide balance to the XI as he is left-footed and is better on the ball than the other options Blues have.

So, it will be interesting to see who does get the nod at centre-back.