I think you already know what you have with Alford, more or less. He is a non-tender candidate at this point. I agree with playing Fisher and Espinal.
I'm not saying you play Biggio in the OF every game. Just the odd game if you have to because of positional matchups.
I dont know if you do know what you have in Alford yet. He had 30 PAs in 2019 and 21 in 2018, if do know that you have nothing in him then i would non tender him and give someone like Wall a chance.
With no options this is the year im playing him as much as i possibly can. I personally didnt think Tellez would make the team so i would have had Gurriel in LF, Grichuk in RF and one of Alford and Fisher in CF with Hernedez DHing and Vladdy and Shaw at the corners. Tellez playing makes it a little more difficult to play Fisher/Alford. Tellez's approach has impressed me thus far i might say.
I just dont like playing Biggio in the OF where is defense is terrible to give 15 ABs to Panik at 2B with his 41 wRC+ and no long term future with the club or Espinal 11 ABs who's value come from playing SS but looks out matched at the plate.
Biggio has his troubles at 2B too where he needs to work on building reps with his double play partner in Bo. Im a strong believer in playing players at the position they are most comfortable with, learn and develop comfort-ability there and let your bench players move around when you need them. With the expanded roster we dont need to have guys be that versatile which can take away from their value as much as it can add if they cant play those positions well. Especially considering most of the team is very young, they arent really comfortable in their "home" positions as yet.